Revert "sepolicy: Label idle_state node"

This reverts commit 5971e8f6ba69021b2a4b99082c584be0c938232a.

Change-Id: Id4f02ce0441f4b5bcd279e934f6bb36cbce9b016
diff --git a/generic/vendor/common/file_contexts b/generic/vendor/common/file_contexts
index 3cc1fe6..45cd2f0 100644
--- a/generic/vendor/common/file_contexts
+++ b/generic/vendor/common/file_contexts
@@ -474,7 +474,6 @@
 # vendor_sysfs_graphics
 /sys/class/graphics/fb0/mdp/caps                                    u:object_r:vendor_sysfs_graphics:s0
 /sys/class/thermal(/.*)?                                            u:object_r:sysfs_thermal:s0
-/sys/devices/virtual/graphics/fb([0-3])+/idle_state                 u:object_r:vendor_sysfs_graphics:s0
 /sys/devices/virtual/graphics/fb([0-3])+/idle_time                  u:object_r:vendor_sysfs_graphics:s0
 /sys/devices/virtual/graphics/fb([0-3])+/dynamic_fps                u:object_r:vendor_sysfs_graphics:s0
 /sys/devices/virtual/graphics/fb([0-3])+/product_description        u:object_r:vendor_sysfs_graphics:s0