Use upstream derailed_benchmarks gem

We don't need our custom fork anymore since the PR has been
accepted upstream

Gemfile

@@ -319,7 +319,7 @@ gem 'peek', '~> 1.1'
 gem 'snowplow-tracker', '~> 0.6.1'
 
 # Memory benchmarks
-gem 'gitlab-derailed_benchmarks', require: false
+gem 'derailed_benchmarks', require: false
 
 # Metrics
 group :metrics do

Gemfile.lock

@@ -211,6 +211,17 @@ GEM
     declarative-option (0.1.0)
     default_value_for (3.3.0)
       activerecord (>= 3.2.0, < 6.1)
+    derailed_benchmarks (1.7.0)
+      benchmark-ips (~> 2)
+      get_process_mem (~> 0)
+      heapy (~> 0)
+      memory_profiler (~> 0)
+      mini_histogram (~> 0)
+      rack (>= 1)
+      rake (> 10, < 14)
+      ruby-statistics (>= 2.1)
+      thor (>= 0.19, < 2)
+      unicode_plot (>= 0.0.4, < 1.0.0)
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     device_detector (1.0.0)
@@ -259,6 +270,7 @@ GEM
       launchy (~> 2.1)
       mail (~> 2.7)
     encryptor (3.0.0)
+    enumerable-statistics (2.0.1)
     equalizer (0.0.11)
     erubi (1.9.0)
     escape_utils (1.2.1)
@@ -290,7 +302,7 @@ GEM
     fast_blank (1.0.0)
     fast_gettext (1.6.0)
     ffaker (2.10.0)
-    ffi (1.11.3)
+    ffi (1.12.2)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake
@@ -371,15 +383,6 @@ GEM
     github-markup (1.7.0)
     gitlab-chronic (0.10.5)
       numerizer (~> 0.2)
-    gitlab-derailed_benchmarks (1.6.1)
-      benchmark-ips (~> 2)
-      get_process_mem (~> 0)
-      heapy (~> 0)
-      memory_profiler (~> 0)
-      rack (>= 1)
-      rake (> 10, < 14)
-      ruby-statistics (>= 2.1)
-      thor (>= 0.19, < 2)
     gitlab-labkit (0.12.0)
       actionpack (>= 5.0.0, < 6.1.0)
       activesupport (>= 5.0.0, < 6.1.0)
@@ -632,6 +635,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
     mimemagic (0.3.3)
+    mini_histogram (0.1.3)
     mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -1084,6 +1088,8 @@ GEM
       unf_ext
     unf_ext (0.0.7.5)
     unicode-display_width (1.6.0)
+    unicode_plot (0.0.4)
+      enumerable-statistics (>= 2.0.1)
     unicode_utils (1.4.0)
     unicorn (5.4.1)
       kgio (~> 2.6)
@@ -1189,6 +1195,7 @@ DEPENDENCIES
   database_cleaner (~> 1.7.0)
   deckar01-task_list (= 2.3.1)
   default_value_for (~> 3.3.0)
+  derailed_benchmarks
   device_detector
   devise (~> 4.6)
   devise-two-factor (~> 3.1.0)
@@ -1231,7 +1238,6 @@ DEPENDENCIES
   gitaly (~> 12.9.0.pre.rc4)
   github-markup (~> 1.7.0)
   gitlab-chronic (~> 0.10.5)
-  gitlab-derailed_benchmarks
   gitlab-labkit (= 0.12.0)
   gitlab-license (~> 1.0)
   gitlab-mail_room (~> 0.0.3)