allwinner: a64: power: Remove obsolete register check

As of a561e41bf1d2 ("allwinner: power: add enable switches for DCDC1/5")
there are no longer regulators without an enable register provided.
Since it seems reasonable that this will continue to be the case, drop
the check.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Icd7ec26fc6450d053e6e6d855fc16229b1d65a39
diff --git a/plat/allwinner/sun50i_a64/sunxi_power.c b/plat/allwinner/sun50i_a64/sunxi_power.c
index bd6c7ee..6e84bf7 100644
--- a/plat/allwinner/sun50i_a64/sunxi_power.c
+++ b/plat/allwinner/sun50i_a64/sunxi_power.c
@@ -212,8 +212,7 @@
 		regval = ((regval - reg->split) / 2) + reg->split;
 
 	axp_write(reg->volt_reg, regval);
-	if (reg->switch_reg < 0xff)
-		axp_setbits(reg->switch_reg, BIT(reg->switch_bit));
+	axp_setbits(reg->switch_reg, BIT(reg->switch_bit));
 
 	INFO("PMIC: AXP803: %s voltage: %d.%03dV\n", reg->dt_name,
 	     mvolt / 1000, mvolt % 1000);