net: sun8i-emac: Drop use of arch-specific header

This header is not used since commit abdbefba2a4e ("net: sun8i_emac: Use
consistent clock bitfield definitions"). Dropping it allows the driver
to be architecture-independent.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index a4b3492..9cca8fa 100644
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -16,7 +16,6 @@
 #include <asm/global_data.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
-#include <asm/arch/clock.h>
 #include <common.h>
 #include <clk.h>
 #include <dm.h>