This change removes the two parameters of networking-mlnx-agent, which
were deprecated by [1] during the Zed cycle, in favor of the duplicate
parameters in the different common classes.
[1] f7b4c844bc95056d8a242332bcf60fcb5b49d8f5
Change-Id: I00cedb7a4a41333a6793d2358e64aa1ac4797fa8