* No need to explicitly call RemoveFromGroupAsync
The sample added this explicit `RemoveFromGroupAsync` call when the connection disconnects, however, it is a redundant call since when the connection disconnects, it is automatically removed from the group.
We have customers using Azure SignalR followed this sample and invokes `RemoveFromGroupAsync` for every client disconnect, this increases unnecessary burdon to the Azure SignalR service when the client connection closes burst.
* Update hubs.md
Section Handle events for a connection for all versions: Noted no need for RemoveFromGroupAsync in OnConnectedAsync
* Update hubs.md
Added note on RemoveFromGroupsAsync to all versions of topic. Corrected Typo.
* Update aspnetcore/signalr/hubs.md
Improved statement.
Co-authored-by: Brennan <brecon@microsoft.com>
* Update hubs.md
Updated statement on RemoveFromGroupAsync for all topic versions.
* Update gRPC example for StronglyTypedChatHubs.cs
Removed RemoveFromGroupAsync call from OnDisconnectedAsync.
Co-authored-by: Wade Pickett <wpickett@microsoft.com>
Co-authored-by: Brennan <brecon@microsoft.com>
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