remove mke2fs rules from global file_contexts

move them to device-specific files.

Bug: 62908056
Change-Id: I299819785d5a64e6ecdde1cd7da472477fe1e295
Merged-In: If92352ea7a70780e9d81ab10963d63e16b793792

private/file_contexts

@@ -174,8 +174,6 @@
 #
 /system(/.*)?		u:object_r:system_file:s0
 /system/bin/atrace	u:object_r:atrace_exec:s0
-/system/bin/e2fsdroid		u:object_r:e2fs_exec:s0
-/system/bin/mke2fs		u:object_r:e2fs_exec:s0
 /system/bin/e2fsck	--	u:object_r:fsck_exec:s0
 /system/bin/fsck\.f2fs	--	u:object_r:fsck_exec:s0
 /system/bin/fsck_msdos	--	u:object_r:fsck_exec:s0
@@ -458,7 +456,6 @@
 /sys/devices/virtual/block/zram\d+(/.*)?     u:object_r:sysfs_zram:s0
 /sys/devices/virtual/block/zram\d+/uevent    u:object_r:sysfs_zram_uevent:s0
 /sys/devices/virtual/misc/hw_random(/.*)?    u:object_r:sysfs_hwrandom:s0
-/sys/fs/ext4/features(/.*)?                  u:object_r:sysfs_fs_ext4_features:s0
 /sys/power/wake_lock -- u:object_r:sysfs_wake_lock:s0
 /sys/power/wake_unlock -- u:object_r:sysfs_wake_lock:s0
 /sys/kernel/uevent_helper --	u:object_r:usermodehelper:s0