Replace ResetTouch with SetTouch(NULL) in voltigore code (#145)

dlls/gearbox/voltigore.cpp

@@ -164,7 +164,7 @@ void CVoltigoreEnergyBall::BallTouch(CBaseEntity *pOther)
 	pev->velocity = Vector(0,0,0);
 
 	m_timeToDie = gpGlobals->time + 0.3;
-	ResetTouch();
+	SetTouch(NULL);
 }
 
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