fix(grenade): initialize creator weapon class to unknown

and remove setting it from Spawn

Author: anf3is

src/game/server/swarm/asw_grenade_cluster.cpp

@@ -132,7 +132,6 @@ void CASW_Grenade_Cluster::Spawn( void )
 		SetThink( &CASW_Grenade_Cluster::CheckNearbyDrones );
 		SetNextThink( gpGlobals->curtime + asw_cluster_grenade_radius_check_interval.GetFloat() );
 	}
-	m_CreatorWeaponClass = (Class_T)CLASS_ASW_UNKNOWN;
 
 	m_bTeslaAmped = false;
 

src/game/server/swarm/asw_grenade_cluster.h

@@ -29,7 +29,7 @@ class CASW_Grenade_Cluster : public CASW_Grenade_Vindicator
 
 	float m_fDetonateTime;
 	float m_fEarliestAOEDetonationTime;
-	Class_T m_CreatorWeaponClass;
+	Class_T m_CreatorWeaponClass = (Class_T)CLASS_ASW_UNKNOWN;
 
 	void SetAdvancedRicochet(bool bRicochet) { m_bAdvancedRicochet = bRicochet; }		// if set, grenade will ricochet with increaced velocity if no world contact explosion specified.
 	bool m_bAdvancedRicochet;