Fix some warning.

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/commands/CommandMarker.java

@@ -4,7 +4,6 @@ import com.mojang.brigadier.Command;
 import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.arguments.IntegerArgumentType;
 import com.mojang.brigadier.builder.LiteralArgumentBuilder;
-import com.mojang.brigadier.builder.RequiredArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.logging.LogUtils;
 import com.zjinja.mcmod.zry_client_utils_mod.marker.MarkerMgr;

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/cui/CUIRegionManager.java

@@ -1,6 +1,5 @@
 package com.zjinja.mcmod.zry_client_utils_mod.cui;
 
-import com.mojang.brigadier.Command;
 import com.mojang.logging.LogUtils;
 import com.zjinja.mcmod.zry_client_utils_mod.renderer.RenderContext;
 import com.zjinja.mcmod.zry_client_utils_mod.utils.ZLogUtil;
@@ -16,7 +15,7 @@ public class CUIRegionManager {
     private static final CUIRegionManager INSTANCE = new CUIRegionManager();
 
     private IRegion selRegion = new EmptyRegion();
-    private HashMap<UUID, IRegion> regions = new HashMap<>();
+    private final HashMap<UUID, IRegion> regions = new HashMap<>();
     private IRegion activeRegion = new EmptyRegion();
 
     public enum RegionType {

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/events/ClientEvents.java

@@ -75,7 +75,6 @@ public class ClientEvents {
         public static void onRenderLevel(RenderLevelStageEvent event) {
             //if(event.getStage().equals(RenderLevelStageEvent.Stage.AFTER_CUTOUT_MIPPED_BLOCKS_BLOCKS)) {
             if(true) {
-                LevelRenderer lr = event.getLevelRenderer();
                 PoseStack ps = event.getPoseStack();
                 Frustum fr = event.getFrustum();
                 RenderContext rctx = new RenderContext(ps, fr);

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/gui/GuiWEHelpPanel.java

@@ -20,8 +20,6 @@ public class GuiWEHelpPanel extends Screen {
     private int functionAreaMaxX;
     private int functionAreaMaxY;
 
-    private final String funcListJsonUri = "data/we_panel_func.json";
-
     private int exitKeyCode = GLFW.GLFW_KEY_V;
 
     public GuiWEHelpPanel() {

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/keybinds/KeyCodeTranslate.java

@@ -1,6 +1,5 @@
 package com.zjinja.mcmod.zry_client_utils_mod.keybinds;
 
-import java.util.HashMap;
 import java.util.Map;
 
 public class KeyCodeTranslate {

src/main/java/com/zjinja/mcmod/zry_client_utils_mod/marker/MarkerMgr.java

@@ -16,7 +16,7 @@ public class MarkerMgr {
         return INSTANCE;
     }
 
-    private ArrayList<AABB> markerList = new ArrayList<>();
+    private final ArrayList<AABB> markerList = new ArrayList<>();
 
     public MarkerMgr() {