docs: remove member limit info for push v2 (#1798)

This limitation was removed with push v2, this PR removes the mention of
the limit form the push v2 docs

Author: madsroskar

docusaurus/docs/reactnative/guides/push_notifications_v2.mdx

@@ -21,7 +21,6 @@ Easiest way to integrate push notifications in your Chat applications is using F
   - They were mentioned
 - Messages from muted users are not sent.
 - Messages are sent to all registered devices for a user (up to 25).
-- Up to 100 members of a channel will receive push notifications.
 - skip_push is marked as false, as described [here](https://getstream.io/chat/docs/javascript/send_message/?language=javascript#complex-example).
 - push_notifications is enabled (default) on the channel type for the sent message.