Revert of AppRTCDemo: Render each video in a separate SurfaceView (patchset #4 id:120001 of https://codereview.webrtc.org/1257043004/ )

Reason for revert:
AppRTCDemo often crashes in loopback mode and incorrect layout when connection is established

BUG=webrtc:4909,webrtc:4910

Original issue's description:
> AppRTCDemo: Render each video in a separate SurfaceView
>
> This CL introduces a new org.webrtc.VideoRenderer.Callbacks implementation called SurfaceViewRenderer that renders each video stream in its own SurfaceView. AppRTCDemo is updated to use this new rendering.
>
> This CL also does the following changes:
> * Make the VideoRenderer.Callbacks interface asynchronous and require that renderFrameDone() is called for every renderFrame(). In JNI, this is implemented with cricket::VideoFrame::Copy()/delete.
> * Make public static helper functions: convertScalingTypeToVisibleFraction(), getDisplaySize(), and getTextureMatrix().
> * Introduces new helper functions surfaceWidth()/surfaceHeight() in EGlBase that allows to query the surface size.
> * Introduce PercentFrameLayout that implements the percentage layout that is used by AppRTCDemo.
>
> BUG=webrtc:4742
>
> Committed: https://crrev.com/05bfbe47ef6bcc9ca731c0fa0d5cd15a4f21e93f
> Cr-Commit-Position: refs/heads/master@{#9699}

TBR=glaznev@webrtc.org,wzh@webrtc.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:4742

Review URL: https://codereview.webrtc.org/1286133002

Cr-Commit-Position: refs/heads/master@{#9703}

webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java

@@ -100,7 +100,6 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
       }
       renderFrameCalled = true;
       doneRendering.countDown();
-      VideoRenderer.renderFrameDone(frame);
     }