Revert "Core/Pets: Water Elementals are now permanent pets" (wrong branch)

This reverts commit 0136c86054.

Also add line ending to recently added SQL file

src/server/game/Entities/Pet/Pet.cpp

@@ -1764,8 +1764,6 @@ bool Pet::IsPermanentPetFor(Player* owner)
                     return GetCreatureInfo()->type == CREATURE_TYPE_DEMON;
                 case CLASS_DEATH_KNIGHT:
                     return GetCreatureInfo()->type == CREATURE_TYPE_UNDEAD;
-                case CLASS_MAGE:
-                    return GetCreatureInfo()->type == CREATURE_TYPE_ELEMENTAL;
                 default:
                     return false;
             }