Revert "Add emergencyDial_1_6 in the HAL to modify the multisim ..."

Revert "Add cuttilefish implementation for emergencyDial_1_6"

Revert submission 1548864-cp-edial-1-6

Reason for revert: some build use some vendor ril_service.cpp
Reverted Changes:
I515ea7381:Add cuttilefish implementation for emergencyDial_1...
I94319ab34:Add emergencyDial_1_6 in the HAL to modify the mul...

Change-Id: I83aedc19bb8eade10c330c2bca625495b9e359e9