BUG/MINOR: peers: remove useless table check if initial resync is finished

BUG/MINOR: peers: remove useless table check if initial resync is finished

The old process checked each table resync status even if
the resync process is finished. This behavior had no known impact
except useless processing and was discovered during debugging on
an other issue.

This patch could be backported in all supported branches (v >= 1.6)
but once again, it has no impact except avoid useless processing.

(cherry picked from commit 1675ada4f4fda2dfc51c8bd1a4f24ec8513ae473)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>