Bump peek-performance_bar to 1.3.0 and get rid of a monkey-patch

Signed-off-by: Rémy Coutable <remy@rymai.me>

Gemfile

@@ -268,7 +268,7 @@ gem 'peek', '~> 1.0.1'
 gem 'peek-gc', '~> 0.0.2'
 gem 'peek-host', '~> 1.0.0'
 gem 'peek-mysql2', '~> 1.1.0', group: :mysql
-gem 'peek-performance_bar', '~> 1.2.1'
+gem 'peek-performance_bar', '~> 1.3.0'
 gem 'peek-pg', '~> 1.3.0', group: :postgres
 gem 'peek-rblineprof', '~> 0.2.0'
 gem 'peek-redis', '~> 1.2.0'

Gemfile.lock

@@ -553,7 +553,7 @@ GEM
       atomic (>= 1.0.0)
       mysql2
       peek
-    peek-performance_bar (1.2.1)
+    peek-performance_bar (1.3.0)
       peek (>= 0.1.0)
     peek-pg (1.3.0)
       concurrent-ruby
@@ -1029,7 +1029,7 @@ DEPENDENCIES
   peek-gc (~> 0.0.2)
   peek-host (~> 1.0.0)
   peek-mysql2 (~> 1.1.0)
-  peek-performance_bar (~> 1.2.1)
+  peek-performance_bar (~> 1.3.0)
   peek-pg (~> 1.3.0)
   peek-rblineprof (~> 0.2.0)
   peek-redis (~> 1.2.0)

config/initializers/peek.rb

@@ -26,7 +26,3 @@ class PEEK_DB_CLIENT
 end
 PEEK_DB_VIEW.prepend ::Gitlab::PerformanceBar::PeekQueryTracker
-
-class Peek::Views::PerformanceBar::ProcessUtilization
-  prepend ::Gitlab::PerformanceBar::PeekPerformanceBarWithRackBody
-end

lib/gitlab/performance_bar/peek_performance_bar_with_rack_body.rb

-# This solves a bug with a X-Senfile header that wouldn't be set properly, see
-# https://github.com/peek/peek-performance_bar/pull/27
-module Gitlab
-  module PerformanceBar
-    module PeekPerformanceBarWithRackBody
-      def call(env)
-        @env = env
-        reset_stats
-
-        @total_requests += 1
-        first_request if @total_requests == 1
-
-        env['process.request_start'] = @start.to_f
-        env['process.total_requests'] = total_requests
-
-        status, headers, body = @app.call(env)
-        body = Rack::BodyProxy.new(body) { record_request }
-        [status, headers, body]
-      end
-    end
-  end
-end