Core/Misc: Fix Clang 10 build warnings

(cherry picked from commit 48c5c0d7a2424df73343df127d415ee18eb84296)

src/server/game/Entities/Unit/Unit.cpp

@@ -3667,9 +3667,7 @@ void Unit::_UnapplyAura(AuraApplicationMap::iterator &i, AuraRemoveFlags removeM
         if (sConditionMgr->IsSpellUsedInSpellClickConditions(aurApp->GetBase()->GetId()))
             player->UpdateVisibleGameobjectsOrSpellClicks();
 
-    // only way correctly remove all auras from list
-    //if (removedAuras != m_removedAurasCount) new aura may be added
-        i = m_appliedAuras.begin();
+    i = m_appliedAuras.begin();
 }
 
 void Unit::_UnapplyAura(AuraApplication * aurApp, AuraRemoveFlags removeMode)