Revert "Merge "Dialer: Add support for OpenCNAM paid accounts" into cm-11.0"

This reverts commit 3c9053d8a38cd6aae8d8ccc213b9fc80bcc46e21, reversing
changes made to 1c82f1c5fd6ca9e864ea1b2ebd3c5c2659982e87.