mark Properties as deprecated

platforms/bukkit/src/main/java/com/dfsek/terra/bukkit/world/block/data/BukkitBlockState.java

@@ -17,8 +17,6 @@
 
 package com.dfsek.terra.bukkit.world.block.data;
 
-import org.bukkit.Material;
-
 import com.dfsek.terra.api.block.BlockType;
 import com.dfsek.terra.api.block.state.BlockState;
 import com.dfsek.terra.api.block.state.properties.Property;
@@ -76,12 +74,7 @@ public class BukkitBlockState implements BlockState {
     public boolean isAir() {
         return delegate.getMaterial().isAir();
     }
-    
-    @Override
-    public boolean isStructureVoid() {
-        return delegate.getMaterial() == Material.STRUCTURE_VOID;
-    }
-    
+
     @Override
     public BukkitBlockState clone() {
         try {

platforms/fabric/src/main/java/com/dfsek/terra/fabric/block/FabricBlockState.java

@@ -17,7 +17,6 @@
 
 package com.dfsek.terra.fabric.block;
 
-import net.minecraft.block.Blocks;
 import net.minecraft.block.enums.BlockHalf;
 import net.minecraft.block.enums.RailShape;
 import net.minecraft.block.enums.WallShape;
@@ -141,12 +140,7 @@ public class FabricBlockState implements BlockState {
     public boolean isAir() {
         return delegate.isAir();
     }
-    
-    @Override
-    public boolean isStructureVoid() {
-        return delegate.getBlock() == Blocks.STRUCTURE_VOID;
-    }
-    
+
     @Override
     public BlockState clone() {
         try {

platforms/sponge/src/main/java/com/dfsek/terra/sponge/block/SpongeBlockState.java

@@ -71,11 +71,6 @@ public class SpongeBlockState implements BlockState {
         return delegate.type().equals(BlockTypes.AIR.get());
     }
     
-    @Override
-    public boolean isStructureVoid() {
-        return delegate.type().equals(BlockTypes.STRUCTURE_VOID.get());
-    }
-    
     @Override
     public BlockState clone() {
         return this;