Revert "Move mockTool into test-utils (#7245)" (#7277)

package-lock.json

@@ -14248,7 +14248,6 @@
         "winston": "^3.17.0"
       },
       "devDependencies": {
-        "@google/gemini-cli-test-utils": "file:../test-utils",
         "@types/express": "^5.0.3",
         "@types/fs-extra": "^11.0.4",
         "@types/supertest": "^6.0.3",
@@ -14814,9 +14813,7 @@
       "version": "0.2.1",
       "license": "Apache-2.0",
       "devDependencies": {
-        "@google/gemini-cli-core": "file:../core",
-        "typescript": "^5.3.3",
-        "vitest": "^3.1.1"
+        "typescript": "^5.3.3"
       },
       "engines": {
         "node": ">=20"