MRP-1182 ldlm: remove duplicate of flock export initialization

After commit 960ed8416c026bc5c30bd5ffad93cc6420e98d9d two
initialization of ldlm flock export was called at mdt_init_export()
and ldlm_init_export().

Signed-off-by: Alexander Boyko <alexander_boyko@xyratex.com>
Change-Id: I36f236c45eba56f8ee430ce3c425c868013a276e
Reviewed-on: http://morpheus.xyus.xyratex.com:8443/gerrit/567
Reviewed-by: Andriy Skulysh <Andriy_Skulysh@xyratex.com>
Tested-by: Jenkins
Tested-by: Elena Gryaznova <Elena_Gryaznova@xyratex.com>
Reviewed-by: Vitaly Fertman <Vitaly_Fertman@xyratex.com>
Revert "MRP-1147 ptlrpc: no abort connetcion with active request"

This reverts commit 3569df3d2fbadf9b88497a8cfb0cefa58697f6f3.