removed darkening hover state and animation color labels

app/assets/stylesheets/framework/animations.scss

@@ -115,10 +115,6 @@ a {
   @include transition(background-color, color, border);
 }
 
-.color-label {
-  @include transition(box-shadow);
-}
-
 .tree-table td,
 .well-list > li {
   @include transition(background-color, border-color);

app/assets/stylesheets/pages/labels.scss

@@ -106,10 +106,6 @@
 .color-label {
   padding: 3px 7px;
   border-radius: $label-border-radius;
-
-  &:hover {
-    box-shadow: inset 0 0 0 80px $label-remove-border;
-  }
 }
 
 .dropdown-labels-error {