Removing outline from language list.

chrome/browser/resources/options/language_options.css

 .language-options {
   display: -webkit-box;
   margin: 10px 0;
 }
 
 .language-options-lower-left button,
 .language-options-right button {
   min-width: 70px;
 }
 
@@ skipping 62 matching lines @@
   width: 95%;
   -webkit-margin-start: 10px;
 }
 
 #language-options-input-method-list label {
   margin: 4px 0;
 }
 
 #language-options-list {
   -webkit-box-flex: 1;
+  outline: none;
   padding: 1px 0 0;
   width: 100%;
 }
 
 #language-options-list .language-name {
   -webkit-box-flex: 1;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
@@ skipping 102 matching lines @@
 }
 
 #chewing-max-chi-symbol-len {
   width: 100px;
   height: 30%;
 }
 
 #add-language-overlay-page .content-area {
   padding-bottom: 10px;
 }