MFC r259872:
MFC r259872:

 The compile time constant limit on number of swap devices was removed in 5.2.
 As such, remove the EINVAL error saying so.  Currently the vm.nswapdev sysctl
 just represents the number of added swap devices.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase