[Glitch] frequentlyUsedLanguages not updated correctly

Port 8adf67f2db to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/compose/components/language_dropdown.jsx

@@ -240,7 +240,6 @@ class LanguageDropdown extends PureComponent {
     frequentlyUsedLanguages: PropTypes.arrayOf(PropTypes.string),
     intl: PropTypes.object.isRequired,
     onChange: PropTypes.func,
-    onClose: PropTypes.func,
   };
 
   state = {
@@ -257,14 +256,11 @@ class LanguageDropdown extends PureComponent {
   };
 
   handleClose = () => {
-    const { value, onClose } = this.props;
-
     if (this.state.open && this.activeElement) {
       this.activeElement.focus({ preventScroll: true });
     }
 
     this.setState({ open: false });
-    onClose(value);
   };
 
   handleChange = value => {