Remove obsolete angle_end2end_tests_run target.

gpu/BUILD.gn

 # 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.
 
 # GYP-to-GN project mappings:
 #
 #  gpu.gyp:command_buffer_client => //gpu/command_buffer/client
 #
 #  gpu.gyp:command_buffer_common => //gpu/command_buffer/common
 #
@@ skipping 294 matching lines @@
     "//base",
     "//base/test:test_support",
     "//gpu/command_buffer/service",
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
     "//ui/gfx/geometry",
     "//ui/gl",
   ]
 }
-
-if (is_win || is_linux || is_mac) {
-  # TODO(GYP): Delete this after we've converted everything to GN.
-  # The _run targets exist only for compatibility w/ GYP.
-  group("angle_end2end_tests_run") {
-    testonly = true
-    deps = [
-      "//third_party/angle/src/tests:angle_end2end_tests",
-    ]
-  }
-}