Revert "Add API for cross device calling."

Revert "Add cts tests for new cross device calling api"

Revert submission 16308056-cross-api

Reason for revert: Don't want to launch this in T now
Reverted Changes:
I731226c0b:Add cts tests for new cross device calling api
I1a3aa6c1a:Add API for cross device calling.
I40f78925b:Implement new TelecomManager API for cross device ...

Change-Id: I687d94235b159d8daa20fe75de08394adc39f8c7
diff --git a/telecomm/java/android/telecom/Connection.java b/telecomm/java/android/telecom/Connection.java
index 21a1804..30d4959 100644
--- a/telecomm/java/android/telecom/Connection.java
+++ b/telecomm/java/android/telecom/Connection.java
@@ -561,6 +561,15 @@
      */
     public static final int PROPERTY_CROSS_SIM = 1 << 13;
 
+    /**
+     * Connection is a tethered external call.
+     * <p>
+     * Indicates that the {@link Connection} is fixed on this device but the audio streams are
+     * re-routed to another device.
+     * <p>
+     */
+    public static final int PROPERTY_TETHERED_CALL = 1 << 14;
+
     //**********************************************************************************************
     // Next PROPERTY value: 1<<14
     //**********************************************************************************************