Revert "Updates the license headers."

This reverts commit 93648f361b.

modules/API/API.js

@@ -1,18 +1,3 @@
-/*
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
 /**
  * Implements API class that communicates with external api class
  * and provides interface to access Jitsi Meet features by external