Revert "Avoid killing instrumentation process while start process"

This reverts commit 0bd1bf628d857ecbe79778ce4265dc374e92e294.

Reason for revert: It is better to fix it by knownToBeDead.

Bug: 120107272
Change-Id: I367d806ba6c4e969462ea0374b9fe450bd0442ec
1 file changed