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/common/Threading/ThreadingModel.h

@@ -20,7 +20,6 @@ namespace acore
     class GeneralLock
     {
     public:
-
         GeneralLock(MUTEX& m)
             : i_mutex(m)
         {
@@ -33,7 +32,6 @@ namespace acore
         }
 
     private:
-
         GeneralLock(const GeneralLock&);
         GeneralLock& operator=(const GeneralLock&);
         MUTEX& i_mutex;
@@ -43,7 +41,6 @@ namespace acore
     class SingleThreaded
     {
     public:
-
         struct Lock                                     // empty object
         {
             Lock()
@@ -63,7 +60,6 @@ namespace acore
     class ObjectLevelLockable
     {
     public:
-
         ObjectLevelLockable()
             : i_mtx()
         {
@@ -74,19 +70,16 @@ namespace acore
         class Lock
         {
         public:
-
             Lock(ObjectLevelLockable<T, MUTEX>& host)
                 : i_lock(host.i_mtx)
             {
             }
 
         private:
-
             GeneralLock<MUTEX> i_lock;
         };
 
     private:
-
         // prevent the compiler creating a copy construct
         ObjectLevelLockable(const ObjectLevelLockable<T, MUTEX>&);
         ObjectLevelLockable<T, MUTEX>& operator=(const ObjectLevelLockable<T, MUTEX>&);
@@ -98,7 +91,6 @@ namespace acore
     class ClassLevelLockable
     {
     public:
-
         ClassLevelLockable()
         {
         }
@@ -108,7 +100,6 @@ namespace acore
         class Lock
         {
         public:
-
             Lock(const T& /*host*/)
             {
                 ClassLevelLockable<T, MUTEX>::si_mtx.lock();
@@ -131,7 +122,6 @@ namespace acore
         };
 
     private:
-
         static MUTEX si_mtx;
     };
 }