Removed reliance on PartType from code outside of Bootstrapping,

and restored ability to group different supported items on
Upgrade Card tooltips.

src/main/java/appeng/parts/AEBasePart.java

@@ -31,7 +31,6 @@ import net.minecraft.crash.CrashReportCategory;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.network.PacketBuffer;
@@ -67,8 +66,6 @@ import appeng.api.util.DimensionalCoord;
 import appeng.api.util.IConfigManager;
 import appeng.helpers.ICustomNameObject;
 import appeng.helpers.IPriorityHost;
-import appeng.items.parts.PartItem;
-import appeng.items.parts.PartType;
 import appeng.me.helpers.AENetworkProxy;
 import appeng.me.helpers.IGridProxyable;
 import appeng.parts.networking.CablePart;
@@ -96,15 +93,6 @@ public abstract class AEBasePart implements IPart, IGridProxyable, IActionHost,
         return this.host;
     }
 
-    public PartType getType() {
-        Item item = this.is.getItem();
-        if (!(item instanceof PartItem)) {
-            return PartType.INVALID_TYPE;
-        }
-
-        return ((PartItem<?>) item).getType();
-    }
-
     @Override
     public IGridNode getGridNode(final AEPartLocation dir) {
         return this.proxy.getNode();