fixed mini pipeline graph connector lines offset

app/assets/stylesheets/pages/pipelines.scss

@@ -195,7 +195,7 @@
           width: 8px;
           position: absolute;
           right: -7px;
-          bottom: 8px;
+          bottom: 9px;
           border-bottom: 2px solid $border-color;
         }
       }
@@ -691,10 +691,3 @@
     }
   }
 }
-
-.ci-status-icon-created {
-
-  svg {
-    fill: $gray-darkest;
-  }
-}