audioflinger: Temporary disable post-close dumping of input streams

There is a suspicion that dumping HAL state for a recently closed
input stream can hang forever, blocking audioflinger and stucking
system boot.

In order to verify, we disable this dumping to see if it would
help with presubmit bots.

Bug: 116211629
Test: see steps in b/116211629#9
Change-Id: I189461187a2310c213278cc2b3af2469d1896965