Revert "CallStyle: Also handle null label to glue"

This reverts commit 614da108d8e4259ad925a437830408e83b6c3979.

Reason for revert: Droid-monitor created revert due to test breakages in b/330590608. Will be verifying through ABTD for confirmation and before submitting the revert.

Change-Id: I978863e433869ad152f41e3c303a1ff9c5745cce
1 file changed