Revert "QuickSettings : Register/unregister cast tile one time"

This causes a CTS failure: android.security.cts.ListeningPortsTest
  testNoRemotelyAccessibleListeningUdp6Ports

This reverts commit e037c1fe6dbdcd077719f7fc7b1902a887b56c23.

Change-Id: Idc145b6fb17490664fb5614d44e1ae92c98df844