Revert "MRP-1746 mgc: mgc import reconnect race"

This reverts commit 14041d43d1b24e02f4f1a7da7e4def6280c8d9da.
MRP-1720 tests: skip tests require remote server with nodsh

Patch fixes sanity 116, 180c, 183, 200, 220, 225a, 225b, 228 tests,
sanityn 34, 40a, 40b, 40c, 40d, 40e, 51 tests
to be skipped for remote servers with nodsh set.

Signed-off-by: Elena Gryaznova <elena_gryaznova@xyratex.com>
Change-Id: Ib423e0af50c4e939d49a876add834f697215d0c9
MRP-1732 tests: strip extra / in mcreate_path2fid

test_226 fails when $DIR has extra /
Signed-off-by: Sergey Cheremencev <sergey_cheremencev@xyratex.com>

Change-Id: I3036738f499db7de2036b2e4ca6d1af3a452c214
Reviewed-on: http://es-gerrit.xyus.xyratex.com:8080/1661
Reviewed-by: Vladimir Saveliev <vladimir_saveliev@xyratex.com>
Tested-by: Jenkins
Reviewed-by: Parinay Kondekar <parinay_kondekar@xyratex.com>
Tested-by: Elena Gryaznova <elena_gryaznova@xyratex.com>
Reviewed-by: Vitaly Fertman <vitaly_fertman@xyratex.com>