init.rc: Remove sys.powerctl action

Init now handles this property change directly.

Bug: 37209359
Bug: 37415192

Test: Init reboots normally.
Change-Id: I9a4925897fb83bed180d12c871d9a71126fa4aa8
(cherry picked from commit 4608daf0fe6b5feb11afbfb6ae613d7a5161c95d)
diff --git a/etc/init.rc b/etc/init.rc
index fa3689d..d8121cc 100644
--- a/etc/init.rc
+++ b/etc/init.rc
@@ -75,9 +75,6 @@
     trigger early-boot
     trigger boot
 
-on property:sys.powerctl=*
-   powerctl ${sys.powerctl}
-
 service ueventd /sbin/ueventd
     critical
     seclabel u:r:ueventd:s0