Revert "msm: rpc: add shutdown and restart handler for rpc"

This reverts commit 40bbce5254d85136aa260bfffb27273f7d8d86f3.

Change-Id: Ica41de5b82effa9bacbb0610fe0a6876f8914bfe
Merge "Revert "msm: rpc: add shutdown and restart handler for rpc"" into kk_2.7-stable