Remove top border from build page

app/views/projects/builds/show.html.haml

@@ -2,10 +2,9 @@
 = render "header_title"
 
 .build-page
-  .gray-content-block
+  .gray-content-block.top-block
     Build ##{@build.id} for commit
-    %strong.monospace
-      = link_to @build.commit.short_sha, ci_status_path(@build.commit)
+    %strong.monospace= link_to @build.commit.short_sha, ci_status_path(@build.commit)
     from
     = link_to @build.ref, namespace_project_commits_path(@project.namespace, @project, @build.ref)
 
@@ -22,7 +21,6 @@
               - else
                 = build.id
 
-
       - if @build.retried?
         %li.active
           %a
@@ -31,7 +29,7 @@
             %i.fa.fa-warning
             This build was retried.
 
-  .gray-content-block.second-block
+  .gray-content-block.middle-block
     .build-head
       .clearfix
         = ci_status_with_icon(@build.status)