Remove GYP files.

third_party/errorprone/errorprone.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.
-
-{
-  'variables': {
-    'errorprone_script_path': '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
-  },
-  'targets': [
-    {
-      # GN: //third_party/errorprone:error_prone_annotation_java
-      'target_name': 'error_prone_annotation_jar',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/error_prone_annotation-2.0.5.jar',
-      },
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ]
-    },
-    {
-      # GN: //third_party/errorprone:error_prone_annotations_java
-      'target_name': 'error_prone_annotations_jar',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/error_prone_annotations-2.0.5.jar',
-      },
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ]
-    },
-    {
-      # GN: //third_party/errorprone:dataflow_java
-      'target_name': 'dataflow_jar',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/dataflow-1.8.10.jar',
-      },
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ]
-    },
-    {
-      # GN: //third_party/errorprone:javacutil_java
-      'target_name': 'javacutil_jar',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/javacutil-1.8.10.jar',
-      },
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ]
-    },
-    {
-      # GN: //third_party/errorprone:javac_java
-      'target_name': 'javac_jar',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/javac-1.9.0-dev-r2644-1.jar',
-      },
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ]
-    },
-    {
-      # GN: //third_party/errorprone:chromium_errorprone
-      'target_name': 'chromium_errorprone',
-      'type': 'none',
-      'variables': {
-        'jar_path': 'lib/error_prone_core-2.0.5.jar',
-      },
-      'dependencies': [
-        '../../third_party/findbugs/findbugs.gyp:format_string_jar',
-        'error_prone_annotation_jar',
-        'error_prone_annotations_jar',
-        'dataflow_jar',
-        'javac_jar',
-        'javacutil_jar',
-      ],
-      'includes': [
-        '../../build/host_prebuilt_jar.gypi',
-      ],
-      'actions': [
-        {
-          'action_name': 'create_errorprone_binary_script',
-          'inputs': [
-            '<(DEPTH)/build/android/gyp/create_java_binary_script.py',
-            '<(DEPTH)/build/android/gyp/util/build_utils.py',
-            # Ensure that the script is touched when the jar is.
-            '<(jar_path)',
-          ],
-          'outputs': [
-            '<(errorprone_script_path)',
-          ],
-          'action': [
-            'python', '<(DEPTH)/build/android/gyp/create_java_binary_script.py',
-            '--output', '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
-            # TODO(mikecase): Remove this extra arg when the bots are on jdk8 or higher.
-            '--bootclasspath', '<(PRODUCT_DIR)/lib.java/javac_jar.jar',
-            '--jar-path=<(jar_path)',
-            '--classpath=>@(input_jars_paths)',
-            '--main-class=com.google.errorprone.ErrorProneCompiler',
-          ],
-        },
-      ],
-    },
-    {
-      # This emulates gn's datadeps fields. We don't want the errorprone jars
-      # to be added to the classpaths of targets that depend on errorprone.
-      'target_name': 'require_errorprone',
-      'type': 'none',
-      'actions': [
-        {
-          'action_name': 'require_errorprone',
-          'message': 'Making sure errorprone has been built.',
-          'variables': {
-            'required_file': '<(PRODUCT_DIR)/bin.java/errorprone.required',
-          },
-          'inputs': [
-            '<(errorprone_script_path)',
-          ],
-          'outputs': [
-            '<(required_file)',
-          ],
-          'action': [
-            'python', '../../build/android/gyp/touch.py', '<(required_file)',
-          ],
-        },
-      ],
-    },
-  ],
-}