Revert "msm: kgsl: implement server-side waits"

This reverts commit 537ec3c36914f7dff5dc832042e8d29aabeeba7d.

Conflicts:
	drivers/gpu/msm/adreno.c
	drivers/gpu/msm/adreno_dispatch.c
	drivers/gpu/msm/kgsl.c
	drivers/gpu/msm/kgsl.h
	drivers/gpu/msm/kgsl_iommu.c
	drivers/gpu/msm/kgsl_mmu.c
	drivers/gpu/msm/kgsl_mmu.h
	drivers/gpu/msm/kgsl_sharedmem.h