Remove react-refesh re-export from metro-runtime, reduce it to a …

…dev dependency

Summary:
This removes the unused module `fast-refresh` from `metro-runtime`, removing our dependency on `react-refresh`.

`fast-refresh` is unused anywhere as far as I can tell, but as other modules in `metro-runtime/src/module` are designed to be imported by consumers using subpaths, I'd regard this as a breaking change.

(In general, only exports from module entry points, or explicit `package.json#exports` are considered part of Metro's public API)

```
* **[Breaking]:** Remove `metro-runtime/src/modules/fast-refresh` and `react-refresh` dependency - now owned by RN's Babel preset.
```

Reviewed By: huntie

Differential Revision: D49500556

fbshipit-source-id: 842bd84cfde44b2d27e58e6e7d568248cf38eb34

packages/metro-runtime/package.json

@@ -13,12 +13,12 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@babel/runtime": "^7.0.0",
-    "react-refresh": "^0.14.0"
+    "@babel/runtime": "^7.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
     "react": "^18.2.0",
+    "react-refresh": "^0.14.0",
     "react-test-renderer": "^18.2.0"
   },
   "engines": {