Revert "hlte: ril: Add Samsung UNSOL responses to RIL class"

This reverts commit 9ecdc23a17819c93bc3640e0f02f4c9d721c49ec.
Revert "HLTE: ril: Update based on Ethan's changes for klte"

This reverts commit a1c419802ec160219e677ebbb1a9c432763a47da.