Add BluetoothHeadset#setPriority to the list of approved incompatibilities for API level 31

Bug: 183551808
Test: Manual
Change-Id: I279c9b753d5a799443bb92fce066f38c86bf96bb
diff --git a/31/system/api/incompatibilities.txt b/31/system/api/incompatibilities.txt
index 9beb6f9..b312e91 100644
--- a/31/system/api/incompatibilities.txt
+++ b/31/system/api/incompatibilities.txt
@@ -39,3 +39,6 @@
     Removed package android.net.apf
 RemovedPackage: android.net.util:
     Removed package android.net.util
+
+RemovedDeprecatedMethod: android.bluetooth.BluetoothHeadset#setPriority(android.bluetooth.BluetoothDevice, int):
+    Removed deprecated method android.bluetooth.BluetoothHeadset.setPriority(android.bluetooth.BluetoothDevice,int)