[Glitch] Remove “No description added” media warning in edit mode

Port 28ae058593 to glitch-soc

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

app/javascript/flavours/glitch/features/compose/components/upload.js

@@ -48,7 +48,7 @@ export default class Upload extends ImmutablePureComponent {
                 {!isEditingStatus && (<button className='icon-button' onClick={this.handleFocalPointClick}><Icon id='pencil' /> <FormattedMessage id='upload_form.edit' defaultMessage='Edit' /></button>)}
               </div>
 
-              {(media.get('description') || '').length === 0 && (
+              {(media.get('description') || '').length === 0 && !isEditingStatus && (
                 <div className='compose-form__upload__warning'>
                   <button className='icon-button' onClick={this.handleFocalPointClick}><Icon id='info-circle' /> <FormattedMessage id='upload_form.description_missing' defaultMessage='No description added' /></button>
                 </div>