chats: stop using getMessage to decrypt poll votes

The new expected behavior is to decrypt the new votes yourself like in the Example.ts file

src/Socket/chats.ts

@@ -896,7 +896,6 @@ export const makeChatsSocket = (config: SocketConfig) => {
 					keyStore: authState.keys,
 					logger,
 					options: config.options,
-					getMessage: config.getMessage,
 				}
 			)
 		])