Merge branch '10520-builds-css' into 'master'

Removes EE differences for builds.css

Closes gitlab-ee#10520

See merge request gitlab-org/gitlab-ce!26351

app/assets/stylesheets/pages/builds.scss

@@ -50,7 +50,6 @@
     position: relative;
   }
 
-
   .build-trace {
     @include build-trace();
   }
@@ -392,3 +391,14 @@
   right: 0;
   margin-top: -17px;
 }
+
+@include media-breakpoint-down(sm) {
+  .top-bar {
+    .truncated-info {
+      white-space: nowrap;
+      overflow: hidden;
+      max-width: 220px;
+      text-overflow: ellipsis;
+    }
+  }
+}