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/Instances/InstanceSaveMgr.h

@@ -46,7 +46,6 @@ class InstanceSave
 {
     friend class InstanceSaveManager;
 public:
-
     InstanceSave(uint16 MapId, uint32 InstanceId, Difficulty difficulty, time_t resetTime, time_t extendedResetTime);
     ~InstanceSave();
     [[nodiscard]] uint32 GetInstanceId() const { return m_instanceid; }
@@ -80,7 +79,6 @@ public:
 
     typedef std::list<uint32> PlayerListType;
 private:
-
     PlayerListType m_playerList;
     time_t m_resetTime;
     time_t m_extendedResetTime;

src/server/game/Instances/InstanceScript.h

@@ -121,7 +121,6 @@ typedef std::map<uint32 /*entry*/, MinionInfo> MinionInfoMap;
 class InstanceScript : public ZoneScript
 {
 public:
-
     explicit InstanceScript(Map* map) : instance(map), completedEncounters(0) {}
 
     ~InstanceScript() override {}