Remove unused key enotif_mailer

Change-Id: Idcc1ad8e3326f4ca9b8ab495afcc2a680be0a00e
Remove unused key exblank

Change-Id: Idcb503108529ece3b38eca26e1b05b6efd4be3e8
Merge "Remove unused key enotif_mailer"
Merge "Remove unused key exblank"