fix: remove unsupported plugin

Author: stekern

.eslintrc

@@ -5,9 +5,6 @@
     "prettier",
     "plugin:prettier/recommended"
   ],
-  "plugins": [
-    "deprecation"
-  ],
   "overrides": [
     {
       "files": ["*.ts"]
@@ -18,7 +15,6 @@
     "sourceType": "module"
   },
   "rules": {
-    "deprecation/deprecation": "error",
     "@typescript-eslint/no-non-null-assertion": "off",
     "@typescript-eslint/no-unused-vars": "error"
   }