SamsungQualcommUiccRIL: fix responseCallList for v7 RIL

  * copied Samsung-specific workaround from D2 RIL
  * only needed for v7 RIL; override not needed for v6 RIL

Change-Id: Ifc7d7ebe1887317e4debc6acd2754e47ce1d0d6b
telephony: Remove SamsungQualcommD2RIL

 * This is now implemented in the superclass for v7.

Change-Id: If86f10f7a64ca25db2f1f4d579c078c7545ffd98