remove a few warnings

src/main/java/carpet/mixins/RedstoneWireBlockMixin.java

@@ -36,10 +36,10 @@ public abstract class RedstoneWireBlockMixin implements RedstoneWireBlockInterfa
     private Set<BlockPos> affectedNeighbors;
 
     @Shadow
-    private int increasePower(int int_1, BlockState blockState_1) { return 0; };
+    private int increasePower(int int_1, BlockState blockState_1) { return 0; }
 
     @Shadow
-    private BlockState update(World world_1, BlockPos blockPos_1, BlockState blockState_1) { return null; };
+    private BlockState update(World world_1, BlockPos blockPos_1, BlockState blockState_1) { return null; }
 
     // =