Update README.md (realm#3932)

Removed CTA for questionaire

README.md

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 Realm is a mobile database that runs directly inside phones, tablets or wearables.
 This project hosts the JavaScript versions of [Realm](https://realm.io/). Currently we support React Native (both iOS & Android), Node.js and Electron (on Windows, MacOS and Linux).
 
-## Tell us about your experience
-
-We want to hear from you! Tell us about your experience using the Realm SDKs in our [short survey](http:https://bit.ly/3hRO5U2).
-
 ## Features
 
 * **Mobile-first:** Realm is the first database built from the ground up to run directly inside phones, tablets and wearables.