i40e/i40evf: Remove unused hardware receive descriptor code
The hardware supports a 16 byte descriptor for receive, but the driver was never using it in production. There was no performance benefit to the real driver of 16 byte descriptors, so drop a whole lot of complexity while getting rid of the code. Also since the previous patch made us use no-split mode all the time, drop any support in the driver for any other value in dtype and assume it is always zero (aka no-split). Hooray for code removal! Change-ID: I2257e902e4dad84a07b94db6d2e6f4ce69b27bc0 Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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