[10739] Cleanup pet remove code and some fixes.

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автор: VladimirMangos

m src/game/BattleGround.cpp

m src/game/MiscHandler.cpp

m src/game/NPCHandler.cpp

m src/game/Pet.cpp

m src/game/Pet.h

m src/game/PetHandler.cpp

m src/game/Player.cpp

m src/game/Player.h

m src/game/SpellAuras.cpp

m src/game/SpellEffects.cpp

m src/game/Unit.cpp

m src/game/WorldSession.cpp

m src/shared/revision_nr.h

[10739] Cleanup pet remove code and some fixes.



* Merge Player::RemovePet and Pet::Remove function code to Pet::Unsummon

  This let be sure that in all cases all required steps doen. For example this fix

  creature's guardians propertly remove from guardians list.

* Add new pet save mode PET_SAVE_REAGENTS as replacement PET_SAVE_NOT_IN_SLOT+true-arg stable pair in old function args

  This will avoid use reagent save arg with wrong different save modes.

* Fixed recently added code with absent check for re-summon protector pet call.

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