API Cleanup: Remove VideoState class.

- Remove VideoState class.
- Replace references to VideoState constants with VideoProfile equivalent.
- Push VideoState static methods into VideoProfile.

Bug: 21573551
Change-Id: I1bca02772b5b7d86643f612824b07faef7618725

telecomm/java/android/telecom/ConnectionRequest.java

@@ -42,7 +42,7 @@ public final class ConnectionRequest implements Parcelable {
             PhoneAccountHandle accountHandle,
             Uri handle,
             Bundle extras) {
-        this(accountHandle, handle, extras, VideoProfile.VideoState.AUDIO_ONLY);
+        this(accountHandle, handle, extras, VideoProfile.STATE_AUDIO_ONLY);
     }
 
     /**