commit 6c4838db450ecfcddec48e2b3ba180187f60ca22
author Markus Liu <markusliu@google.com> Fri Jan 21 16:43:34 2022 +0800
committer Markus Liu <markusliu@google.com> Fri Jan 21 18:41:25 2022 +0800
tree eb050bd66c565788e70c0c75d0c032b2214094c1
parent 94588798960f9939eb192343e474c22b223ceb68

Replaced ending call procedure with wait_for_call_end

1. The part for ending call in call_setup_teardown_for_subscription
   is replaced with wait_for_call_end to reduce duplicate.
2. A logical bug in wait_for_call_end is fixed, which will cause the
   function returns immediately without runnning remaining part when
   the call was dropped.
3. Try-except block in call_setup_teardown_for_subscription is
   removed.

Bug: None
Test: Yes, locally
Change-Id: I6ce9ad0b3dd5114d9eaffd34733f73fd37ecdf0c