revert: dependencies in json

Author: Akash Thota

tests/signature-verification/package.json

@@ -17,9 +17,6 @@
         "test": "anchor test"
     },
     "dependencies": {
-        "@anchor-lang/core": "^0.32.1",
-        "ethers": "^5.7.2",
-        "mocha": "^9.2.2",
-        "ts-mocha": "^10.1.0"
+        "ethers": "^5.7.2"
     }
 }