Revert "Only spawn one binder thread for cmd."

This was being used as a work around for a static destructor
issue that has been fixed.

This reverts commit c21bc9afe403f52c189d2d6b79dedaf9dce6217b.
Bug: 36066697
Bug: 77934844
Test: cmd still works

Change-Id: Id13589c5c12de0a36b70b8d16216e21345eb986e
1 file changed