chore: remove placeholder npm script

While npm 7+ requires either the target script to be present in all
workspaces, or the `--if-present` flag to be specified[^1], turborepo
does not have this requirement[^2].

Now that we've switched from using npm to turborepo to invoke our
test scripts, renove this placeholder test that provides no value.

[^1]: https://docs.npmjs.com/cli/v7/using-npm/workspaces#ignoring-missing-scripts
[^2]: https://turborepo.org/docs/features/pipelines#tasks-that-are-in-the-pipeline-but-not-in-some-packagejson

Author: ericcrosson-bitgo

packages/response/package.json

@@ -13,8 +13,7 @@
   ],
   "scripts": {
     "build": "tsc --build --incremental --verbose .",
-    "clean": "rm -rf -- dist",
-    "test": "echo 'Please add tests'"
+    "clean": "rm -rf -- dist"
   },
   "dependencies": {
     "fp-ts": "2.11.8",