chore(core): remove malformed whitespaces (#4244)

* from https://www.codefactor.io/repository/github/azerothcore/azerothcore-wotlk/issues?category=Style&groupId=838&lang=5&page=75

src/server/game/Chat/Channels/Channel.cpp

@@ -978,12 +978,10 @@ void Channel::SendToAllWatching(WorldPacket* data)
 
 void Channel::Voice(uint64 /*guid1*/, uint64 /*guid2*/)
 {
-
 }
 
 void Channel::DeVoice(uint64 /*guid1*/, uint64 /*guid2*/)
 {
-
 }
 
 void Channel::MakeNotifyPacket(WorldPacket* data, uint8 notify_type)

src/server/game/Chat/Chat.h

@@ -124,7 +124,6 @@ protected:
     bool ShowHelpForSubCommands(std::vector<ChatCommand> const& table, char const* cmd, char const* subcmd);
 
 private:
-
     WorldSession* m_session;                           // != NULL for chat command call and NULL for CLI command
 
     // common global flag