stmmac: intel: Simplify intel_eth_pci_remove()

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2122226

commit 1621e70
Author: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 2 Sep 2022 18:26:56 +0200

    There is no point to call pcim_iounmap_regions() in the remove function,
    this frees a managed resource that would be release by the framework
    anyway.

    Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Mark Salter <msalter@redhat.com>

Author: mosalter

drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c

@@ -1138,8 +1138,6 @@ static void intel_eth_pci_remove(struct pci_dev *pdev)
 
 	clk_disable_unprepare(priv->plat->stmmac_clk);
 	clk_unregister_fixed_rate(priv->plat->stmmac_clk);
-
-	pcim_iounmap_regions(pdev, BIT(0));
 }
 
 static int __maybe_unused intel_eth_pci_suspend(struct device *dev)