Remove explicit license in BindingSample.

BindingSample/LICENSE.txt

@@ -1,16 +0,0 @@
-Author:
-      Anuj Bhatia <anuj.bhatia@xamarin.com>
-
-Copyright (c) 2012 Xamarin Inc.
-
-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.