Revert "Add a cancel string for ToggleSubscriptionDialog to handle Tamil"

This reverts commit eba8857094c0a1deabaedba92f9713fddb7b0781.

Reason for revert: Issue not urgent enough to go in S, will resubmit to master

Bug: 185553806
Change-Id: Id7f6042e0f7c70a3a8ca951fb80bb7f30acedcb9
2 files changed