Revert "Add fsevents as a dev dependency to avoid Webpack killing the CPU"

This reverts commit ec2aa706.

package.json

@@ -107,7 +107,6 @@
     "eslint-plugin-jasmine": "^2.1.0",
     "eslint-plugin-promise": "^3.5.0",
     "eslint-plugin-vue": "^4.0.1",
-    "fsevents": "^1.1.3",
     "istanbul": "^0.4.5",
     "jasmine-core": "^2.9.0",
     "jasmine-jquery": "^2.1.1",

yarn.lock

@@ -3605,7 +3605,7 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
-fsevents@^1.0.0, fsevents@^1.1.3:
+fsevents@^1.0.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
   dependencies: