♻️(frontend) remove deprecated chat options

Changes introduced by LiveKit which deprecated some chat's options.
As we duplicated their code, let's just removed them.
They are not useful, and not in use anywhere.

src/frontend/src/features/rooms/livekit/prefabs/Chat.tsx

@@ -30,21 +30,11 @@ export interface ChatProps
  * ```
  * @public
  */
-export function Chat({
-  messageFormatter,
-  messageDecoder,
-  messageEncoder,
-  channelTopic,
-  ...props
-}: ChatProps) {
+export function Chat({ messageFormatter, ...props }: ChatProps) {
   const inputRef = React.useRef<HTMLTextAreaElement>(null)
   const ulRef = React.useRef<HTMLUListElement>(null)
 
-  const chatOptions: ChatOptions = React.useMemo(() => {
-    return { messageDecoder, messageEncoder, channelTopic }
-  }, [messageDecoder, messageEncoder, channelTopic])
-
-  const { send, chatMessages, isSending } = useChat(chatOptions)
+  const { send, chatMessages, isSending } = useChat()
 
   const layoutContext = useMaybeLayoutContext()
   const lastReadMsgAt = React.useRef<ChatMessage['timestamp']>(0)

src/frontend/src/features/rooms/livekit/prefabs/VideoConference.tsx

@@ -1,6 +1,4 @@
 import type {
-  MessageDecoder,
-  MessageEncoder,
   TrackReferenceOrPlaceholder,
   WidgetState,
 } from '@livekit/components-core'
@@ -55,8 +53,6 @@ const LayoutWrapper = styled(
 export interface VideoConferenceProps
   extends React.HTMLAttributes<HTMLDivElement> {
   chatMessageFormatter?: MessageFormatter
-  chatMessageEncoder?: MessageEncoder
-  chatMessageDecoder?: MessageDecoder
   /** @alpha */
   SettingsComponent?: React.ComponentType
 }
@@ -81,8 +77,6 @@ export interface VideoConferenceProps
  */
 export function VideoConference({
   chatMessageFormatter,
-  chatMessageDecoder,
-  chatMessageEncoder,
   ...props
 }: VideoConferenceProps) {
   const [widgetState, setWidgetState] = React.useState<WidgetState>({
@@ -220,8 +214,6 @@ export function VideoConference({
               <Chat
                 style={{ display: widgetState.showChat ? 'grid' : 'none' }}
                 messageFormatter={chatMessageFormatter}
-                messageEncoder={chatMessageEncoder}
-                messageDecoder={chatMessageDecoder}
               />
               {sidePanel && <SidePanel />}
             </LayoutWrapper>