Revert "MRP-1147 ptlrpc: no abort connetcion with active request"

This reverts commit 3ca5a582d8ebe49240f780c4445530c04b130791

Change-Id: I2c7491676357178760ff6eb5b5a115ccd050ab11
Reviewed-on: http://morpheus.xyus.xyratex.com:8443/gerrit/578
Reviewed-by: Vitaly Fertman <Vitaly_Fertman@xyratex.com>
Tested-by: Vitaly Fertman <Vitaly_Fertman@xyratex.com>