Linux: Remove extra "goto out" from tmpfs fix

Remove a stray "goto out" that should not have been applied in
this spot along with the tmpfs fix.

Thanks to Stephan Wiesand for pointing it out.

Reviewed-on: http://gerrit.openafs.org/9953
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
(cherry picked from commit f393612d8f0a121d0cb8755f3eb9913c0f09606d)

Change-Id: Ief9521bb41ae1a853b14282b166c62de165a3dc8
Reviewed-on: http://gerrit.openafs.org/10193
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>