Cleanup: drop Server::hudGetHotbarImage()

Call directly accessible RemotePlayer::getHotbarImage() from server api & make it const ref

src/remoteplayer.h

@@ -71,7 +71,7 @@ class RemotePlayer : public Player
 
 	void setHotbarImage(const std::string &name) { hud_hotbar_image = name; }
 
-	std::string getHotbarImage() const { return hud_hotbar_image; }
+	const std::string &getHotbarImage() const { return hud_hotbar_image; }
 
 	void setHotbarSelectedImage(const std::string &name)
 	{

src/script/lua_api/l_object.cpp

@@ -1490,7 +1490,7 @@ int ObjectRef::l_hud_get_hotbar_image(lua_State *L)
 	if (player == NULL)
 		return 0;
 
-	std::string name = getServer(L)->hudGetHotbarImage(player);
+	const std::string &name = player->getHotbarImage();
 	lua_pushlstring(L, name.c_str(), name.size());
 	return 1;
 }

src/server.cpp

@@ -3099,13 +3099,6 @@ void Server::hudSetHotbarImage(RemotePlayer *player, std::string name)
 	SendHUDSetParam(player->getPeerId(), HUD_PARAM_HOTBAR_IMAGE, name);
 }
 
-std::string Server::hudGetHotbarImage(RemotePlayer *player)
-{
-	if (!player)
-		return "";
-	return player->getHotbarImage();
-}
-
 void Server::hudSetHotbarSelectedImage(RemotePlayer *player, std::string name)
 {
 	if (!player)

src/server.h

@@ -291,7 +291,6 @@ class Server : public con::PeerHandler, public MapEventReceiver,
 	bool hudSetFlags(RemotePlayer *player, u32 flags, u32 mask);
 	bool hudSetHotbarItemcount(RemotePlayer *player, s32 hotbar_itemcount);
 	void hudSetHotbarImage(RemotePlayer *player, std::string name);
-	std::string hudGetHotbarImage(RemotePlayer *player);
 	void hudSetHotbarSelectedImage(RemotePlayer *player, std::string name);
 	const std::string &hudGetHotbarSelectedImage(RemotePlayer *player) const;