Disable universal device support in precommit check.

Scripts/precommit.py

@@ -433,6 +433,9 @@ def check_diff_for_keywords():
         print("⚠️  keywords detected in diff:")
         print(output)
 
+def disable_universal_device_support():
+    command_line = git_repo_path + '/Scripts/disableUniversalDeviceSupport'
+    subprocess.call(command_line, shell=True)
 
 if __name__ == "__main__":
     
@@ -440,6 +443,10 @@ if __name__ == "__main__":
     parser.add_argument('--all', action='store_true', help='process all files in or below current dir')
     parser.add_argument('--path', help='used to specify a path to process.')
     args = parser.parse_args()
+
+    # TODO iPad: Once we are ready to commit universal device support,
+    # remove this check and commit the relevant project changes.
+    disable_universal_device_support()
     
     if args.all:
         for rootdir, dirnames, filenames in os.walk(git_repo_path):