afs: remove commented out sleep in afs_call.c

afs: remove commented out sleep in afs_call.c

The cell info setup was moved to the beginning of the startup sequence
and an unnecessary sleep commented out in the syscall in which the cell
info was set in commit 3fa5f389b2b7778cf0df5a506c91b427b147c4c2.

Clean up afs_call.c a bit by removing this commented out code.

Reviewed-on: https://gerrit.openafs.org/12277
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
(cherry picked from commit 591da537e22be88da23216b2640331a7338ce0ae)

Change-Id: I9964603d68feea840cb70056dafad96d2c6adea2
Reviewed-on: https://gerrit.openafs.org/12307
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>