Undid that. Whoops.

forge/forge_common/net/minecraft/src/forge/MinecraftForge.java

@@ -158,22 +158,6 @@ public class MinecraftForge {
 	    }
     }
 
-    /** Remove a block effectiveness mapping.  Since setBlockHarvestLevel
-     * makes the tool class effective against the block by default, this can be
-     * used to remove that mapping.  This will force a block to be harvested at
-     * the same speed regardless of tool quality, while still requiring a given
-     * harvesting level.
-     * @param bl The block to remove effectiveness from.
-     * @param md The metadata for the block subtype.
-     * @param tclass The tool class to remove the effectiveness mapping from.
-     * @see setToolClass for details on tool classes.
-     */
-    public static void removeBlockEffectiveness(Block bl, int md, String tclass) {
-	    ForgeHooks.initTools();
-	    List key=Arrays.asList(bl.blockID,md,tclass);
-	    ForgeHooks.toolEffectiveness.remove(key);
-    }
-
     /**
      * This function is deprecated and will be removed eventually.
      */