ARM: dove: Drop a write-only variable

This fixes a W=1 build error:

arch/arm/mach-dove/common.c: In function ‘dove_clk_init’:
arch/arm/mach-dove/common.c:85:40: error: variable ‘gephy’ set but not used [-Werror=unused-but-set-variable]
85 | struct clk *xor0, *xor1, *ge, *gephy;
| ^~~~~

Fixes: 521674718af0 ("ARM: dove: add clock gating control")
Signed-off-by: Uwe Kleine-König <[e-mail]>
Reviewed-by: Andrew Lunn <[e-mail]>
Signed-off-by: Gregory CLEMENT <[e-mail]>

arch/arm/mach-dove/common.c

···
 {
 	struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1;
 	struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma;
-	struct clk *xor0, *xor1, *ge, *gephy;
+	struct clk *xor0, *xor1, *ge;
 
 	tclk = clk_register_fixed_rate(NULL, "tclk", NULL, 0, dove_tclk);
 
···
 	pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA);
 	xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0);
 	xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1);
-	gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
+	dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
 	ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE);
 
 	orion_clkdev_add(NULL, "orion_spi.0", tclk);