SamsungQualcommRIL: evaluate samsungDriverCall in responseCallList()

  * fixes race condition where mRilVersion is not valid when setPhoneType() is
    called. When this happens, the auto-enable of samsungDriverCall for v7 RIL's
    is broken. The result is that hanging up does not work.
Change-Id: I2642110d3683648aaff722c86d3dc21cbd9ee802
HTCQualcommRIL: clean up unused functions and responses

Change-Id: I0c381677dbb2a8a76008c8eec6e1057fd22be43c