remove all unused eslint-disable rules

app/assets/javascripts/profile/gl_crop.js

-/* eslint-disable no-useless-escape, max-len, quotes, no-var, no-underscore-dangle, func-names, space-before-function-paren, no-unused-vars, no-return-assign, object-shorthand, one-var, one-var-declaration-per-line, comma-dangle, consistent-return, class-methods-use-this, new-parens */
+/* eslint-disable no-useless-escape, max-len, no-var, no-underscore-dangle, func-names, no-unused-vars, no-return-assign, object-shorthand, one-var, one-var-declaration-per-line, comma-dangle, consistent-return, class-methods-use-this, new-parens */
 import $ from 'jquery';
 import 'cropper';

app/assets/javascripts/profile/profile.js

-/* eslint-disable comma-dangle, no-unused-vars, class-methods-use-this, quotes, consistent-return, func-names, prefer-arrow-callback, space-before-function-paren, max-len */
-
 import $ from 'jquery';
 import axios from '~/lib/utils/axios_utils';
-import { __ } from '~/locale';
 import flash from '../flash';
 export default class Profile {

app/assets/javascripts/project_find_file.js

-/* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, quotes, consistent-return, one-var, one-var-declaration-per-line, no-cond-assign, max-len, object-shorthand, no-param-reassign, comma-dangle, prefer-template, no-unused-vars, no-return-assign */
+/* eslint-disable func-names, no-var, wrap-iife, quotes, consistent-return, one-var, one-var-declaration-per-line, no-cond-assign, max-len, prefer-template, no-unused-vars, no-return-assign */
 import $ from 'jquery';
 import fuzzaldrinPlus from 'fuzzaldrin-plus';

app/assets/javascripts/project_select.js

-/* eslint-disable func-names, space-before-function-paren, wrap-iife, prefer-arrow-callback, no-var, comma-dangle, object-shorthand, one-var, one-var-declaration-per-line, no-else-return, quotes, max-len */
+/* eslint-disable func-names, wrap-iife, no-var, comma-dangle, object-shorthand, one-var, one-var-declaration-per-line, no-else-return, quotes, max-len */
 import $ from 'jquery';
 import Api from './api';

app/assets/javascripts/right_sidebar.js

-/* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, no-unused-vars, consistent-return, one-var, one-var-declaration-per-line, quotes, prefer-template, object-shorthand, comma-dangle, no-else-return, no-param-reassign, max-len */
+/* eslint-disable func-names, no-var, no-unused-vars, consistent-return, one-var, one-var-declaration-per-line, quotes, prefer-template, no-else-return, no-param-reassign, max-len */
 import $ from 'jquery';
 import _ from 'underscore';

app/assets/javascripts/search_autocomplete.js

-/* eslint-disable no-return-assign, one-var, no-var, no-underscore-dangle, one-var-declaration-per-line, no-unused-vars, no-cond-assign, consistent-return, object-shorthand, prefer-arrow-callback, func-names, space-before-function-paren, prefer-template, quotes, class-methods-use-this, no-sequences, wrap-iife, no-lonely-if, no-else-return, no-param-reassign, vars-on-top, max-len */
+/* eslint-disable no-return-assign, one-var, no-var, no-underscore-dangle, one-var-declaration-per-line, no-unused-vars, consistent-return, object-shorthand, prefer-template, quotes, class-methods-use-this, no-lonely-if, no-else-return, vars-on-top, max-len */
 import $ from 'jquery';
 import axios from './lib/utils/axios_utils';

app/assets/javascripts/sidebar/mount_sidebar.js

@@ -75,7 +75,6 @@ function mountLockComponent(mediator) {
 function mountParticipantsComponent(mediator) {
   const el = document.querySelector('.js-sidebar-participants-entry-point');
-  // eslint-disable-next-line no-new
   if (!el) return;
   // eslint-disable-next-line no-new

app/assets/javascripts/single_file_diff.js

-/* eslint-disable func-names, prefer-arrow-callback, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, one-var, one-var-declaration-per-line, consistent-return, no-param-reassign, max-len */
+/* eslint-disable func-names, prefer-arrow-callback, consistent-return, */
 import $ from 'jquery';
 import { __ } from './locale';

app/assets/javascripts/syntax_highlight.js

-/* eslint-disable func-names, space-before-function-paren, consistent-return, no-var, no-else-return, prefer-arrow-callback, max-len */
+/* eslint-disable consistent-return, no-else-return */
 import $ from 'jquery';

app/assets/javascripts/tree.js

-/* eslint-disable func-names, space-before-function-paren, wrap-iife, max-len, quotes, consistent-return, no-var, one-var, one-var-declaration-per-line, no-else-return, prefer-arrow-callback, class-methods-use-this */
+/* eslint-disable func-names, max-len, quotes, consistent-return, no-var, one-var, one-var-declaration-per-line, no-else-return, prefer-arrow-callback, class-methods-use-this */
 import $ from 'jquery';
 import { visitUrl } from './lib/utils/url_utility';

app/assets/javascripts/users_select.js

-/* eslint-disable func-names, space-before-function-paren, one-var, no-var, prefer-rest-params, wrap-iife, quotes, max-len, one-var-declaration-per-line, vars-on-top, prefer-arrow-callback, consistent-return, comma-dangle, object-shorthand, no-shadow, no-unused-vars, no-else-return, no-self-compare, prefer-template, no-unused-expressions, no-lonely-if, yoda, prefer-spread, no-void, camelcase, no-param-reassign */
+/* eslint-disable func-names, one-var, no-var, prefer-rest-params, quotes, max-len, one-var-declaration-per-line, vars-on-top, prefer-arrow-callback, consistent-return, comma-dangle, object-shorthand, no-shadow, no-unused-vars, no-else-return, no-self-compare, prefer-template, no-unused-expressions, yoda, prefer-spread, no-void, camelcase, no-param-reassign */
 /* global Issuable */
 /* global emitSidebarEvent */

app/assets/javascripts/vue_merge_request_widget/mr_widget_options.vue

@@ -172,7 +172,7 @@ export default {
           }
         })
         .catch(() => {
-          createFlash('Something went wrong while fetching the environments for this merge request. Please try again.'); // eslint-disable-line
+          createFlash('Something went wrong while fetching the environments for this merge request. Please try again.');
         });
     },
     fetchActionsContent() {

app/assets/javascripts/vue_shared/vue_resource_interceptor.js

@@ -28,7 +28,7 @@ Vue.http.interceptors.push((request, next) => {
     response.headers.forEach((value, key) => {
       headers[key] = value;
     });
-    // eslint-disable-next-line no-param-reassign
+
     response.headers = headers;
   });
 });

app/assets/javascripts/zen_mode.js

-/* eslint-disable func-names, space-before-function-paren, wrap-iife, prefer-arrow-callback, no-unused-vars, consistent-return, camelcase, comma-dangle, max-len, class-methods-use-this */
+/* eslint-disable func-names, wrap-iife, prefer-arrow-callback, no-unused-vars, consistent-return, camelcase, comma-dangle, max-len, class-methods-use-this */
 // Zen Mode (full screen) textarea
 //

spec/javascripts/activities_spec.js

-/* eslint-disable no-unused-expressions, no-prototype-builtins, no-new, no-shadow, max-len */
+/* eslint-disable no-unused-expressions, no-prototype-builtins, no-new, no-shadow */
 import $ from 'jquery';
 import 'vendor/jquery.endless-scroll';

spec/javascripts/awards_handler_spec.js

-/* eslint-disable space-before-function-paren, no-var, one-var, one-var-declaration-per-line, no-unused-expressions, comma-dangle, new-parens, no-unused-vars, quotes, jasmine/no-spec-dupes, prefer-template, max-len */
+/* eslint-disable no-var, one-var, one-var-declaration-per-line, no-unused-expressions, comma-dangle, no-unused-vars, quotes, prefer-template, max-len */
 import $ from 'jquery';
 import Cookies from 'js-cookie';

spec/javascripts/boards/boards_store_spec.js

-/* eslint-disable comma-dangle, one-var, no-unused-vars */
+/* eslint-disable comma-dangle, no-unused-vars */
 /* global ListIssue */
 import Vue from 'vue';

spec/javascripts/bootstrap_jquery_spec.js

-/* eslint-disable space-before-function-paren, no-var */
+/* eslint-disable no-var */
 import $ from 'jquery';
 import '~/commons/bootstrap';

spec/javascripts/gl_dropdown_spec.js

-/* eslint-disable comma-dangle, no-param-reassign, no-unused-expressions, max-len */
+/* eslint-disable comma-dangle, no-param-reassign */
 import $ from 'jquery';
 import GLDropdown from '~/gl_dropdown';

spec/javascripts/gl_field_errors_spec.js

-/* eslint-disable space-before-function-paren, arrow-body-style */
+/* eslint-disable arrow-body-style */
 import $ from 'jquery';
 import GlFieldErrors from '~/gl_field_errors';