Clean up performance Mixins

src/main/java/baritone/utils/accessor/IBitArray.java

@@ -2,7 +2,5 @@ package baritone.utils.accessor;
 
 public interface IBitArray {
 
-    int getAtFast(int index);
-
     int[] toArray();
 }

src/main/java/baritone/utils/accessor/IBlockStateContainer.java

@@ -1,17 +1,9 @@
 package baritone.utils.accessor;
 
 import net.minecraft.block.state.IBlockState;
-import net.minecraft.util.BitArray;
-import net.minecraft.world.chunk.IBlockStatePalette;
 
 public interface IBlockStateContainer {
 
-    IBlockStatePalette getPalette();
-
-    BitArray getStorage();
-
-    IBlockState getFast(int index);
-
     IBlockState getAtPalette(int index);
 
     int[] storageArray();