rgw: sync module: avoid printing attrs of objects in log

rgw: sync module: avoid printing attrs of objects in log

Since attrs are verbose and not necessarily needed as a debug info (as they can
be obtained from the required object itself) avoid logging them. Also
additionally removed another place where such a log is done by the ES sync
module

Fixes: http://tracker.ceph.com/issues/37646
Signed-off-by: Abhishek Lekshmanan <abhishek@suse.com>
(cherry picked from commit 8f37b70630ceb62aff4019e9ad2508977590a873)

Conflicts:
	src/rgw/rgw_sync_module.cc : Resolved in RGWCallStatRemoteObjCR::operate