media: Remove the unused NdkMediaCodecBridge

media/BUILD.gn

Index: media/BUILD.gn
diff --git a/media/BUILD.gn b/media/BUILD.gn
index a91d170405a606d0357ddde6a312cb011d1b50e5..f2c1d3cd67315c9a996e75bb0a6d3b3769e55cdc 100644
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -384,16 +384,6 @@ component("media") {
       "//media/base/android",
       "//media/base/android:media_jni_headers",
     ]
-
-    # Only 64 bit builds are using the android-21 NDK library.
-    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",
-        "base/android/ndk_media_codec_wrapper.cc",
-      ]
-    }
     allow_circular_includes_from = [ "//media/base/android" ]
   }