Revert "Fix primitiveID"
Revert "Fix primitiveID"

There is a suspicion that this might be causing intermittent CTS
failures in the Jenkins run.

This reverts commit a8661e14ba2d554a02054ada586710b87cdfd077.

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