net/ixgbe/base: remove log message FC autoneg
net/ixgbe/base: remove log message FC autoneg

The function ixgbe_device_supports_autoneg_fc is checking whether
a particular device and medium configuration is supporting
Flow Control Autonegotiation. In case of non-support, the message
is always logged which is confusing.
The fix is removing unnecessary log entry.

Signed-off-by: Zalfresso-Jundzillo <ad697336bb08a9633851d8f10b5243480ec2c96a@intel.com>
Signed-off-by: Guinan Sun <2859c668e0b5b1e71d3c9d7ddf700c8e237b77a7@intel.com>
Reviewed-by: Wei Zhao <55941fd0e75edbdf274af2cfac8f147525678f08@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk