net/pfe: remove unnecessary null check

[ upstream commit 01bfb51 ]

ethdev library does the check of dev before calling the link update.

Fixes: acd4818 ("net/pfe: add link status update")

Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Acked-by: Gagandeep Singh <g.singh@nxp.com>

drivers/net/pfe/pfe_ethdev.c

@@ -583,11 +583,6 @@ pfe_eth_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
 	struct rte_eth_link link, old;
 	unsigned int lstatus = 1;
 
-	if (dev == NULL) {
-		PFE_PMD_ERR("Invalid device in link_update.\n");
-		return 0;
-	}
-
 	memset(&old, 0, sizeof(old));
 	memset(&link, 0, sizeof(struct rte_eth_link));