Troye Sivan is letting go of his serene Hollywood Hills hideaway, a mid-century retreat tucked on a quiet cul-de-sac, now asking $2.545 million with Jenna Cooper at Compass. The singer-songwriter and actor, known for hits like Rush and My My My!, and for starring in several films — most notably playing a young Wolverine in X-Men Origins: Wolverine (2009) and starring in the Spud film trilogy — has...