Remove mustSucceed assert that was overly-strict. (#1851)
Remove mustSucceed assert that was overly-strict. (#1851)

The code was asserting that a ELF disassembly section
always exists, but that is not always the case.

Also slightly refactor the code to make it shorter.
GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc