am cde66df4: Revert "Move SIP telephony related codes to framework."

Merge commit 'cde66df44240cfe5a7bec12ac52464c3bf26c14f' into gingerbread-plus-aosp

* commit 'cde66df44240cfe5a7bec12ac52464c3bf26c14f':
  Revert "Move SIP telephony related codes to framework."