Remove upgraded structure caching

Performance improvement is minimal with rewritten DFU and it
breaks structure generation on 1.21 for some reason

Author: embeddedt

common/src/main/java/org/embeddedt/modernfix/command/ModernFixCommands.java

@@ -2,58 +2,9 @@
 
 import com.mojang.brigadier.CommandDispatcher;
 import net.minecraft.commands.CommandSourceStack;
-import net.minecraft.network.chat.Component;
-import net.minecraft.resources.ResourceLocation;
-import net.minecraft.server.level.ServerLevel;
-import net.minecraft.server.packs.resources.Resource;
-import net.minecraft.server.packs.resources.ResourceManager;
-import org.embeddedt.modernfix.ModernFix;
-import org.embeddedt.modernfix.structure.CachingStructureManager;
-
-import java.io.InputStream;
-import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static net.minecraft.commands.Commands.literal;
 
 public class ModernFixCommands {
     public static void register(CommandDispatcher<CommandSourceStack> dispatcher) {
-        dispatcher.register(literal("modernfix")
-                        .then(literal("upgradeStructures")
-                        .requires(source -> source.hasPermission(3))
-                        .executes(context -> {
-                            ServerLevel level = context.getSource().getLevel();
-                            if(level == null) {
-                                context.getSource().sendFailure(Component.literal("Couldn't find server level"));
-                                return 0;
-                            }
-
-                            ResourceManager manager = level.getServer().resources.resourceManager();
-                            Map<ResourceLocation, Resource> structures = manager.listResources("structures", p -> p.getPath().endsWith(".nbt"));
-                            int upgradedNum = 0;
-                            Pattern pathPattern = Pattern.compile("^structures/(.*)\\.nbt$");
-                            for(Map.Entry<ResourceLocation, Resource> entry : structures.entrySet()) {
-                                upgradedNum++;
-                                ResourceLocation found = entry.getKey();
-                                Matcher matcher = pathPattern.matcher(found.getPath());
-                                if(!matcher.matches())
-                                    continue;
-                                ResourceLocation structureLocation = ResourceLocation.fromNamespaceAndPath(found.getNamespace(), matcher.group(1));
-                                try(InputStream resource = entry.getValue().open()) {
-                                    CachingStructureManager.readStructureTag(structureLocation, level.getServer().getFixerUpper(), resource);
-                                    Component msg = Component.literal("checked " + structureLocation + " (" + upgradedNum + "/" + structures.size() + ")");
-                                    context.getSource().sendSuccess(() -> msg, false);
-                                } catch(Throwable e) {
-                                    ModernFix.LOGGER.error("Couldn't upgrade structure " + found, e);
-                                    context.getSource().sendFailure(Component.literal("error reading " + structureLocation + " (" + upgradedNum + "/" + structures.size() + ")"));
-                                }
-                            }
-
-                            context.getSource().sendSuccess(() -> Component.literal("All structures upgraded"), false);
 
-                            return 1;
-                        }))
-        );
     }
 }