Revert "IPCThreadState: Add a public method to probe if a binder call is being served."

This reverts commit 0397face57629e778b2bafe276afa0ca7479236b.

Reason for revert: This breaks framework tests and blocks presubmit

Change-Id: Iead3f828deea1245e43d7e27162b149dfbd56bb9
6 files changed