Remove most android_webview_build conditions from build.

build/jar_file_jni_generator.gypi

 # Copyright (c) 2012 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 generate jni bindings for system Java-files in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'android_jar_jni_headers',
@@ skipping 46 matching lines @@
         '<(optimize_jni_generation)',
         '<(native_exports)',
       ],
       'message': 'Generating JNI bindings from  <(input_jar_file)/<(input_java_class)',
       'process_outputs_as_sources': 1,
     },
   ],
   # This target exports a hard dependency because it generates header
   # files.
   'hard_dependency': 1,
-  'conditions': [
-    ['android_webview_build==1', {
-      'variables': {
-        'native_exports%': '--native_exports',
-      },
-      'dependencies': [
-        '<(DEPTH)/build/android/android_exports.gyp:android_exports',
-      ],
-    }],
-  ],
 }