Bug 1007598 - We should never try to format the phone number on a removed call.
Or we'll trigger an infinite reflow loop.

(cherry picked from commit a3af4e25677c2a0dbaff254d31454e89418697f2)
Merge pull request #19117 from etiennesegonzac/bug-1007598-1.3t

Bug 1007598 - We should never try to format the phone number on a removed call. r=gsvselto