Revert "Add icon for "Extra dim" used in accessibility shortcut" This reverts commit e9f44933ac3558b39eb2e7f88bee579ba8c03a7a. Reason for revert: Bug: 185737105 Change-Id: I7978fb859451a47182bf7a2147a50254731bfc2d (cherry picked from commit 56a7a55e651dbae3b370888063b325478e0f42b4)