Remove all .gyp and .gypi files.

build/android/rezip.gyp

-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Build the rezip build tool.
-{
-  'targets': [
-    {
-      # GN: //build/android/rezip:rezip
-      'target_name': 'rezip_apk_jar',
-      'type': 'none',
-      'variables': {
-        'java_in_dir': 'rezip',
-        'compile_stamp': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)/compile.stamp',
-        'javac_jar_path': '<(PRODUCT_DIR)/lib.java/rezip_apk.jar',
-      },
-      'actions': [
-        {
-          'action_name': 'javac_<(_target_name)',
-          'message': 'Compiling <(_target_name) java sources',
-          'variables': {
-            'java_sources': ['>!@(find >(java_in_dir) -name "*.java")'],
-          },
-          'inputs': [
-            '<(DEPTH)/build/android/gyp/util/build_utils.py',
-            '<(DEPTH)/build/android/gyp/javac.py',
-            '>@(java_sources)',
-          ],
-          'outputs': [
-            '<(compile_stamp)',
-            '<(javac_jar_path)',
-          ],
-          'action': [
-            'python', '<(DEPTH)/build/android/gyp/javac.py',
-            '--classpath=',
-            '--classes-dir=<(SHARED_INTERMEDIATE_DIR)/<(_target_name)',
-            '--jar-path=<(javac_jar_path)',
-            '--stamp=<(compile_stamp)',
-            '>@(java_sources)',
-          ]
-        },
-      ],
-    }
-  ],
-}