vibrator: Remove unneeded typoed init.rc cmd

Change-Id: I5edfe608e9bb6ce9b7258b4d3a713fb7f5208d7a
diff --git a/aidl/vibrator/vibrator-mediatek.rc b/aidl/vibrator/vibrator-mediatek.rc
index 3b02f33..24d61b2 100644
--- a/aidl/vibrator/vibrator-mediatek.rc
+++ b/aidl/vibrator/vibrator-mediatek.rc
@@ -1,6 +1,5 @@
 on init
     chown system system /sys/kernel/thunderquake_engine/level
-    chown 644 /sys/kernel/thunderquake_engine/level
 
 service vendor.vibrator-mediatek /vendor/bin/hw/android.hardware.vibrator-service.mediatek
     class hal