Revert of Refactor MediaCodecBridge to add support for NDK APIs

media/BUILD.gn

Index: media/BUILD.gn
diff --git a/media/BUILD.gn b/media/BUILD.gn
index 746437c762944a8a24cd21396cd4bc6a406daa81..1c2a73f5e9e9ce376a2944e575f5dd500c149403 100644
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -396,15 +396,6 @@ component("media") {
       "//media/base/android:video_capture_jni_headers",
     ]
 
-    # Only 64 bit builds are using android-21 NDK library, check common.gypi
-    if (current_cpu == "arm64" || current_cpu == "x64" ||
-        current_cpu == "mips64el") {
-      sources += [
-        "base/android/ndk_media_codec_bridge.cc",
-        "base/android/ndk_media_codec_bridge.h",
-      ]
-      libs += [ "mediandk" ]
-    }
     allow_circular_includes_from = [ "//media/base/android" ]
   }