Move SelectAccountDialogFragment from common.editor to editor

Removed the SelectAccountDialogFragment.Listener from
QuickContacts since the dialog is not displayed anymore.
It stopped being used in ag/522326 but we forgot to delete
the listener implementation.

Test: Exercised the moved dialog by: 1) creating a label and
2) import contacts from SIM on a device with more that one
writable account.

Bug: 31088704
Bug: 30759296

Change-Id: Id78b41b80556fd44adb1f20e0ba9217918d23ff3
4 files changed