S666LN: rootdir: Stop overriding dirty_background_ratio

* Let our kernel decide for this as we're setting it to 20 and 50 for interactivity

Signed-off-by: KimelaZX <mmikailrei@gmail.com>

rootdir/etc/init/hw/init.mt6789.rc

@@ -369,7 +369,6 @@ on boot
 on property:sys.boot_completed=1
     # Back to default VM settings
     write /proc/sys/vm/dirty_expire_centisecs 3000
-    write /proc/sys/vm/dirty_background_ratio 10
 
 on property:sys.boot_completed=1
 
@@ -398,4 +397,4 @@ on property:sys.boot_completed=1
 
 # OTG
 on property:sys.boot_completed=1
-    write /sys/devices/platform/odm/odm:tran_battery/OTG_CTL 1
+    write /sys/devices/platform/odm/odm:tran_battery/OTG_CTL 1