Revert "Temporary hack: Also print extra backtraces on test timeouts on host."

This reverts commit 25d536e67fc69e0413298989f1b21b6fdcece682.

Reason for revert: build infra does not have python 3.5, so subprocess.run().
Bug: 142039427
Bug: 144333851
Bug: 144360582

Change-Id: Ide90b3e78a458f6c941c1e36b4f5fb084259f5b1
1 file changed