Update `Gemfile.rails5.lock`

Gemfile.rails5.lock

@@ -304,7 +304,7 @@ GEM
       flowdock (~> 0.7)
       gitlab-grit (>= 2.4.1)
       multi_json
-    gitlab-gollum-lib (4.2.7.1)
+    gitlab-gollum-lib (4.2.7.2)
       gemojione (~> 3.2)
       github-markup (~> 1.6)
       gollum-grit_adapter (~> 1.0)
@@ -602,8 +602,6 @@ GEM
       atomic (>= 1.0.0)
       mysql2
       peek
-    peek-performance_bar (1.3.1)
-      peek (>= 0.1.0)
     peek-pg (1.3.0)
       concurrent-ruby
       concurrent-ruby-ext
@@ -1134,7 +1132,6 @@ DEPENDENCIES
   peek (~> 1.0.1)
   peek-gc (~> 0.0.2)
   peek-mysql2 (~> 1.1.0)
-  peek-performance_bar (~> 1.3.0)
   peek-pg (~> 1.3.0)
   peek-rblineprof (~> 0.2.0)
   peek-redis (~> 1.2.0)