Revert of Add remoting and PPAPI tests to GN build

remoting/codec/BUILD.gn

Index: remoting/codec/BUILD.gn
diff --git a/remoting/codec/BUILD.gn b/remoting/codec/BUILD.gn
deleted file mode 100644
index 26bf12bae8a786c3806c9b81f8cb4930451c514c..0000000000000000000000000000000000000000
--- a/remoting/codec/BUILD.gn
+++ /dev/null
@@ -1,47 +0,0 @@
-# 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.
-
-import("//remoting/remoting_srcs.gni")
-
-source_set("codec") {
-  sources = rebase_path(remoting_srcs_gypi_values.remoting_codec_sources,
-                        ".",
-                        "//remoting")
-
-  configs += [ "//build/config/compiler:wexit_time_destructors" ]
-
-  deps = [
-    "//base/third_party/dynamic_annotations",
-    "//media",
-    "//media:shared_memory_support",
-    "//remoting/proto",
-    "//remoting/resources",
-    "//third_party/libvpx",
-    "//third_party/libyuv",
-    "//third_party/opus",
-    "//third_party/webrtc/modules/desktop_capture",
-  ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-
-  sources = [
-    "audio_encoder_opus_unittest.cc",
-    "codec_test.cc",
-    "codec_test.h",
-    "video_decoder_vpx_unittest.cc",
-    "video_encoder_helper_unittest.cc",
-    "video_encoder_verbatim_unittest.cc",
-    "video_encoder_vpx_unittest.cc",
-  ]
-
-  deps = [
-    ":codec",
-    "//base",
-    "//remoting/proto",
-    "//testing/gtest",
-    "//third_party/webrtc/modules/desktop_capture",
-  ]
-}