unneeded, and was allocating thousands of sets a second

src/main/java/baritone/pathing/movement/MovementHelper.java

@@ -465,7 +465,6 @@ public interface MovementHelper extends ActionCosts, Helper {
     static boolean isFlowing(IBlockState state) {
         // Will be IFluidState in 1.13
         return state.getBlock() instanceof BlockLiquid
-                && state.getPropertyKeys().contains(BlockLiquid.LEVEL)
                 && state.getValue(BlockLiquid.LEVEL) != 0;
     }
 }