Revert "Mms: Add the ability to select recipients from a checkbox list"

This reverts commit bb2b736fc7627b35b3f7065d6e15e56e36b8f206.
Revert "Mms: Add the ability to select recipients from a checkbox list"

This reverts commit 28bed6be865e8bd46389dcfb27e8d7dfb158e2f1.