Un-hide Connection-side RTT APIs for Dialer

Bug: 63934808
Test: builds
Change-Id: I59a892fb0e314810e92dd9ad7d0c2f4610055045
Merged-In: I59a892fb0e314810e92dd9ad7d0c2f461005504

telecomm/java/android/telecom/ConnectionRequest.java

@@ -16,7 +16,6 @@
 
 package android.telecom;
 
-import android.annotation.TestApi;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Parcel;
@@ -310,9 +309,7 @@ public final class ConnectionRequest implements Parcelable {
      * send and receive RTT text to/from the in-call app.
      * @return An instance of {@link android.telecom.Connection.RttTextStream}, or {@code null}
      * if this connection request is not requesting an RTT session upon connection establishment.
-     * @hide
      */
-    @TestApi
     public Connection.RttTextStream getRttTextStream() {
         if (isRequestingRtt()) {
             return new Connection.RttTextStream(mRttPipeToInCall, mRttPipeFromInCall);
@@ -324,9 +321,7 @@ public final class ConnectionRequest implements Parcelable {
     /**
      * Convenience method for determining whether the ConnectionRequest is requesting an RTT session
      * @return {@code true} if RTT is requested, {@code false} otherwise.
-     * @hide
      */
-    @TestApi
     public boolean isRequestingRtt() {
         return mRttPipeFromInCall != null && mRttPipeToInCall != null;
     }