Revert "Fixed stained glass and glass pane not rendering the water and held item transparency for stained glass and pane (#748)"

This reverts commit a4214805d1.

Minecraft.Client/GameRenderer.cpp

@@ -745,12 +745,7 @@ void GameRenderer::renderItemInHand(float a, int eye)
 			{
 				turnOnLightLayer(a);
 				PIXBeginNamedEvent(0,"Item in hand render");
-				glEnable(GL_BLEND);
-				glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-				glDepthMask(false);
 				itemInHandRenderer->render(a);
-				glDepthMask(true);
-				glDisable(GL_BLEND);
 				PIXEndNamedEvent();
 				turnOffLightLayer(a);
 			}