hikey960: fstab.hikey960: Drop f2fs userdata

Over the last week I started seeing some occasional trouble
with the f2fs entry in fstab.hikey960 causing init confusion
where the fsck found bad magic value (since the partition is
ext4), but the partition wasn't released before the ext4
mount began and saw it as in use.

This caused userdata not not be mounted at all, and resulted
in a number of keystore errors and the system not booting
fully to UI.

I don't think anyone is really using the f2fs userdata config
with HiKey960, so lets drop it.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Ibc34b74a252fd94618fb454db4b9c46ec9eef1a5
diff --git a/hikey960/fstab.hikey960 b/hikey960/fstab.hikey960
index 63326f6..fe43486 100644
--- a/hikey960/fstab.hikey960
+++ b/hikey960/fstab.hikey960
@@ -6,7 +6,6 @@
 #/dev/block/platform/soc/ff3b0000.ufs/by-name/system_a    /system    ext4    ro                                                                   wait
 #/dev/block/platform/soc/ff3b0000.ufs/by-name/cache       /cache     ext4    discard,noauto_da_alloc,data=ordered,user_xattr,barrier=1    wait
 #/dev/block/platform/soc/ff3b0000.ufs/by-name/userdata    /data      ext4    discard,noauto_da_alloc,data=ordered,user_xattr,barrier=1    wait
-/dev/block/by-name/userdata    /data      f2fs    discard,noatime,nosuid,nodev                                 wait,check,fileencryption=software,quota
 /dev/block/by-name/userdata    /data      ext4    discard,noatime,nosuid,nodev,noauto_da_alloc,data=ordered,user_xattr,barrier=1,inlinecrypt    wait,formattable,fileencryption=aes-256-xts:aes-256-cts:v2+inlinecrypt_optimized,quota
 /dev/block/by-name/cache	/metadata       ext4    noatime,nosuid,nodev,discard                                    wait,formattable
 /devices/platform/soc/ff37f000.dwmmc1/mmc_host/mmc*      auto       auto    defaults    voldmanaged=sdcard1:auto,encryptable=userdata