Revert "map_orphan_and_risk - next try for upload method"

This reverts commit 17747fcfb8.

On orphaning, some gl drivers do heurisitics where to store the buffer.
As the hack may only work on pinned memory, it would be much less deteministic.

Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.h

@@ -30,7 +30,6 @@ enum StreamType {
 	MAP_AND_ORPHAN,
 	MAP_AND_SYNC,
 	MAP_AND_RISK,
-	MAP_ORPAN_AND_RISK,
 	PINNED_MEMORY,
 	BUFFERSUBDATA
 };