Delete before forced bulk insert to fix broken migrations

js/modules/data.js

@@ -37,6 +37,7 @@ module.exports = {
   saveMessage,
   saveMessages,
   removeMessage,
+  _removeMessages,
   getUnreadByConversation,
 
   removeAllMessagesInConversation,
@@ -220,6 +221,11 @@ async function removeMessage(id, { Message }) {
   }
 }
 
+// Note: this method will not clean up external files, just delete from SQL
+async function _removeMessages(ids) {
+  await channels.removeMessage(ids);
+}
+
 async function getMessageById(id, { Message }) {
   const message = await channels.getMessageById(id);
   return new Message(message);