Remove GYP files.

ios/web/js_compile_bundle.gypi

-# Copyright 2015 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.
-
-# This file is meant to be included into a target to provide a rule
-# to build JavaScript bundles using closure compiler.
-#
-# To use this, create a gyp target with the following form:
-# {
-#   'target_name': 'my_js_target',
-#   'type': 'none',
-#   'variables': {
-#     'closure_entry_point': 'name of the closure module',
-#     'js_bundle_files': ['path/to/dependency/file',],
-#   },
-#   'includes': ['path/to/this/gypi/file'],
-# }
-#
-# Required variables:
-#  closure_entry_point - name of the entry point closure module.
-#  js_bundle_files - list of js files to build a bundle.
-
-{
-  'variables': {
-    'closure_compiler_path': '<(DEPTH)/third_party/closure_compiler/compiler/compiler.jar',
-  },
-  'rules': [
-    {
-      'rule_name': 'jsbundlecompilation',
-      'extension': 'js',
-      'inputs': [
-        '<(closure_compiler_path)',
-        '<@(js_bundle_files)',
-      ],
-      'outputs': [
-        '<(SHARED_INTERMEDIATE_DIR)/<(RULE_INPUT_NAME)',
-      ],
-      'action': [
-        'java',
-        '-jar',
-        '<(closure_compiler_path)',
-        '--compilation_level',
-        'SIMPLE_OPTIMIZATIONS',
-        # Pass every js file to closure compiler. --only_closure_dependencies
-        # flag ensures that unnecessary files will not be compiled into the
-        # final output file.
-        '--js',
-        '<@(js_bundle_files)',
-        '--js_output_file',
-        '<@(_outputs)',
-        '--only_closure_dependencies',
-        '--closure_entry_point=<(closure_entry_point)',
-      ],
-      'message': 'Building <(RULE_INPUT_NAME) JavaScript bundle',
-    }  # rule_name: jsbundlecompilation
-  ]
-}