Removed old rendering system

Removed old rendering system. Some parts may be left over, but they
won't affect testing.
1.10-R todo tag marks things to do with rendering.

src/main/java/appeng/block/misc/BlockTinyTNT.java

@@ -48,7 +48,6 @@ import net.minecraft.world.World;
 import net.minecraftforge.fml.common.registry.EntityRegistry;
 
 import appeng.block.AEBaseBlock;
-import appeng.client.render.BaseBlockRender;
 import appeng.core.AppEng;
 import appeng.core.features.AEFeature;
 import appeng.entity.EntityIds;
@@ -73,12 +72,6 @@ public class BlockTinyTNT extends AEBaseBlock implements ICustomCollision
 		EntityRegistry.registerModEntity( EntityTinyTNTPrimed.class, "EntityTinyTNTPrimed", EntityIds.get( EntityTinyTNTPrimed.class ), AppEng.instance(), 16, 4, true );
 	}
 
-	@Override
-	protected Class<? extends BaseBlockRender> getRenderer()
-	{
-		return null;
-	}
-
 	@Override
 	public void postInit()
 	{