btrfs: Drop stray check of fixup_workers creation
btrfs: Drop stray check of fixup_workers creation

The issue was introduced in a79b7d4b3e8118f265dcb4bdf9a572c392f02708,
adding allocation of extent_workers, so this stray check is surely not
meant to be a check of something else.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=82021
Reported-by: Maks Naumov <f886d1f16eb583d2de4044dbf709d7d0b80d246a@ukr.net>
Signed-off-by: Andrey Utkin <261da76fe9d2fe2e8bdc22049270af0a9f189e33@gmail.com>
Reviewed-by: Eric Sandeen <d55521028c14e0f378be5444e4ea388161c0d7e7@redhat.com>
Signed-off-by: Chris Mason <e2e8c5702d8ed5f565988a1cf5bb35c9ce199e5e@fb.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs