Removed VDP_waitDMACompletion() security (developer need to do it by himself if needed)
Removed VDP_waitDMACompletion() security (developer need to do it by himself if needed)

Removed DMA fill/copy completion check on DMA operation as we need to be as fast as possible here. It's up to the developer to take care of that when using DMA fill / copy operation.

Stephane-D/SGDK,andwn/SGDK,andwn/SGDK,Stephane-D/SGDK,andwn/SGDK,Stephane-D/SGDK