SamsungRIL: cleanup

Removed unneeded states and forward them to RIL. In ics, this had
the side-effect of allowing STK to work due to the Samsung STK
implementation already in place

cherry-picked from ics

stk functionality for SamsungRIL

* Implemented SMS based SIM application functionality
* PatchSet 3: Added fix so unknown unsolicited response are sent to super class
* PatchSet 4: Removed "import android.content.resources" - not needed any more
* PatchSet 5: processUnsolicited cleanup, using super class standard states where possible
* Patchset 6: Rebased

Change-Id: I9bf844da1480fe442f851fb20d99b530b96cfa4c