Remove unused Libraries/*.d.ts export subpath (2/2) (#57366)

Summary:
Pull Request resolved: #57366

Follows #57362 (accidentally missed).

Simplifying our `"exports"` map to its minimum form will help for the incoming review/understandability of the Strict TS API rollout by default.

Changelog: [Internal]

landed-with-radar-review

Reviewed By: robhogan

Differential Revision: D110055788

fbshipit-source-id: 83919aec45f3be18c08e983a751de1117c237171

Author: huntie

packages/react-native/package.json

@@ -43,10 +43,6 @@
       "react-native-strict-api": null,
       "default": "./Libraries/*.js"
     },
-    "./Libraries/*.d.ts": {
-      "react-native-strict-api": null,
-      "default": "./Libraries/*.d.ts"
-    },
     "./scripts/*": "./scripts/*",
     "./src/*": {
       "types": null,