update user event docs on rtl requirement

Author: jacklaurencegaray

docs/user-event/install.mdx

@@ -6,12 +6,3 @@ title: Installation
 ```bash npm2yarn
 npm install --save-dev @testing-library/user-event
 ```
-
-Note that `@testing-library/user-event` requires `@testing-library/dom`.
-
-If you use one of the
-[framework wrappers](../dom-testing-library/install.mdx#wrappers), it is
-important that `@testing-library/dom` is resolved to the same installation
-required by the framework wrapper of your choice.  
-Usually this means that if you use one of the framework wrappers, you should not
-add `@testing-library/dom` to your project dependencies.