Remove DisablePatchOpt option
Remove DisablePatchOpt option

Using the option leads to crashes, as there are passes that rely
on previously running optimizations (for example lgc-patch-buffer-op).

Removing the option will simplify transition to the new pass
manager.

When the switch happens, the optimization levels (-O0, -O1, -O2)
will control which optimizations to run.

GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc