Revert "Commented cropping stuff in D3D10System::DrawSpriteExRotate"

This reverts commit 8e2583c2c265c79dda24bd2c8fba22cba411b609.
Revert "Use GS->SetScissorRect for cropping instead of GS->SetCropping"

This reverts commit b4a08c378748f025c3a1abacfe0230d6981c6c28.