remove useless

package.json

@@ -12,10 +12,6 @@
   "dependencies": {
     "@codemirror/lang-cpp": "^6.0.3",
     "@codemirror/lang-python": "^6.2.1",
-    "@vue-flow/background": "^1.3.2",
-    "@vue-flow/controls": "^1.1.3",
-    "@vue-flow/core": "^1.47.0",
-    "@vue-flow/minimap": "^1.5.4",
     "@vueuse/core": "^13.9.0",
     "@vueuse/router": "^13.9.0",
     "@wangeditor-next/editor": "^5.6.46",