Fix remain copyright header issues for .in files (#4177)

Signed-off-by: Steve Pham <spham@amazon.com>

Code/Tools/Android/ProjectBuilder/build.gradle.in

@@ -1,13 +1,9 @@
 //
-// All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
-// its licensors.
+// Copyright (c) Contributors to the Open 3D Engine Project.
+// For complete copyright and license terms please see the LICENSE at the root of this distribution.
+//
+// SPDX-License-Identifier: Apache-2.0 OR MIT
 //
-// For complete copyright and license terms please see the LICENSE at the root of this
-// distribution (the "License"). All use of this software is governed by the License,
-// or, if provided, by the license below or the license accompanying this file. Do not
-// remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-
 
 apply plugin: "com.android.${TARGET_TYPE}"
 
@@ -16,7 +12,7 @@ ${SIGNING_CONFIGS}
     compileSdkVersion sdkVer
     buildToolsVersion buildToolsVer
     ndkVersion ndkPlatformVer
-	lintOptions {
+    lintOptions {
         abortOnError false
         checkReleaseBuilds false
     }

Code/Tools/Android/ProjectBuilder/gradle.properties.in

@@ -1,12 +1,8 @@
 ###
-###  All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
-###  its licensors.
+### Copyright (c) Contributors to the Open 3D Engine Project.
+### For complete copyright and license terms please see the LICENSE at the root of this distribution.
 ###
-###  For complete copyright and license terms please see the LICENSE at the root of this
-###  distribution (the "License"). All use of this software is governed by the License,
-###  or, if provided, by the license below or the license accompanying this file. Do not
-###  remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
-###  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+### SPDX-License-Identifier: Apache-2.0 OR MIT
 ###
 
 # For more details on how to configure your build environment visit

Code/Tools/Android/ProjectBuilder/local.properties.in

@@ -1,12 +1,8 @@
 ###
-###  All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
-###  its licensors.
+### Copyright (c) Contributors to the Open 3D Engine Project.
+### For complete copyright and license terms please see the LICENSE at the root of this distribution.
 ###
-###  For complete copyright and license terms please see the LICENSE at the root of this
-###  distribution (the "License"). All use of this software is governed by the License,
-###  or, if provided, by the license below or the license accompanying this file. Do not
-###  remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
-###  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+### SPDX-License-Identifier: Apache-2.0 OR MIT
 ###
 
 ## This file must *NOT* be checked into Version Control Systems,

Code/Tools/Android/ProjectBuilder/root.build.gradle.in

@@ -1,12 +1,9 @@
 //
-// All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
-// its licensors.
+// Copyright (c) Contributors to the Open 3D Engine Project.
+// For complete copyright and license terms please see the LICENSE at the root of this distribution.
+//
+// SPDX-License-Identifier: Apache-2.0 OR MIT
 //
-// For complete copyright and license terms please see the LICENSE at the root of this
-// distribution (the "License"). All use of this software is governed by the License,
-// or, if provided, by the license below or the license accompanying this file. Do not
-// remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 
 buildscript {
     repositories {