language select not need clear icon (#7217)

frontend/src/components/common/group-select/index.css

@@ -95,6 +95,7 @@
 
 .group-select .selected-option-show .selected-option-item .selected-option-item-name {
   font-size: 13px;
+  color: #212529;
 }
 
 .group-select .selected-option-show .selected-option-item .sf2-icon-close {

frontend/src/components/user-settings/language-setting.js

@@ -29,6 +29,7 @@ class LanguageSetting extends React.Component {
           value={{ value: currentLang.langCode, label: currentLang.langName }}
           options={options}
           onChange={this.onSelectChange}
+          isClearable={false}
         />
       </div>
     );

frontend/src/metadata/components/dialog/metadata-tags-status-dialog/index.js

@@ -101,6 +101,7 @@ const MetadataTagsStatusDialog = ({ value: oldValue, lang: oldLang, repoID, togg
                   value={langOptions.find(o => o.value === lang) || langOptions[1]}
                   options={langOptions}
                   onChange={onSelectChange}
+                  isClearable={false}
                 />
               </div>
             )}