ata: sata_rcar: Remove unused variable in sata_rcar_init_controller()

drivers/ata/sata_rcar.c: In function 'sata_rcar_init_controller':
drivers/ata/sata_rcar.c:821:8: warning: unused variable 'base' [-Wunused-variable]

Fixes: da77d76b95a0e894 ("sata_rcar: Reset SATA PHY when Salvator-X board resumes")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tejun Heo <tj@kernel.org>

drivers/ata/sata_rcar.c

@@ -818,7 +818,6 @@ static void sata_rcar_init_module(struct sata_rcar_priv *priv)
 static void sata_rcar_init_controller(struct ata_host *host)
 {
 	struct sata_rcar_priv *priv = host->private_data;
-	void __iomem *base = priv->base;
 
 	/* reset and setup phy */
 	switch (priv->type) {