Remove redundant variables

src/main/java/team/chisel/block/BlockCarvable.java

@@ -27,7 +27,6 @@ public class BlockCarvable extends Block implements ICarvable {
 
     public CarvableHelper carverHelper;
     private boolean isAlpha;
-    private static final boolean canMobsSpawnOnTheChiselBlocks = Configurations.canMobsSpawnOnTheChiselBlocks;
 
     public BlockCarvable() {
         this(Material.rock);
@@ -174,6 +173,6 @@ public class BlockCarvable extends Block implements ICarvable {
 
     @Override
     public boolean canCreatureSpawn(EnumCreatureType type, IBlockAccess world, int x, int y, int z) {
-        return canMobsSpawnOnTheChiselBlocks;
+        return Configurations.canMobsSpawnOnTheChiselBlocks;
     }
 }

src/main/java/team/chisel/item/ItemCarvable.java

@@ -24,8 +24,6 @@ public class ItemCarvable extends ItemBlock {
         setHasSubtypes(true);
     }
 
-    private static final boolean canMobsSpawnOnTheChiselBlocks = Configurations.canMobsSpawnOnTheChiselBlocks;
-
     @Override
     public int getMetadata(int i) {
         return i;
@@ -53,7 +51,7 @@ public class ItemCarvable extends ItemBlock {
 
         lines.add(var.getDescription());
 
-        if (!canMobsSpawnOnTheChiselBlocks)
+        if (!Configurations.canMobsSpawnOnTheChiselBlocks)
             lines.add(StatCollector.translateToLocal("item.chisel.nomobspawnsonthisblock.desc"));
     }
 }