Revert "Merge pull request #13000 from EragonJ/bug-927724"

This reverts commit 4d74b13f20f12996d41eb3e9a6c8775dd1717d67, reversing
changes made to 1433717c81d5f6f439cadf8511f559f1f19f5fc4.

Cause: the dialer is completely broken if your sim doesn't have
voicemail infos.