board: rockchip: rk3399: Remove unused board_early_init_f functions

These functions is excluded from SPL build and BOARD_EARLY_INIT_F is not
enabled for any of the affected boards, so this legacy code is not used.

Rockchip common board code already enable all regulators flagged as
always-on or boot-on in device tree, and fixed/gpio regulators now have
basic reference counting support so the original intent of this code is
no longer valid.

Remove the unneeded and unused code that used to enable usb regulators.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
index 93e7d77..590519b 100644
--- a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
+++ b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
@@ -9,32 +9,12 @@
 #include <log.h>
 #include <spl_gpio.h>
 #include <asm/io.h>
-#include <power/regulator.h>
 
 #include <asm/arch-rockchip/cru.h>
 #include <asm/arch-rockchip/gpio.h>
 #include <asm/arch-rockchip/grf_rk3399.h>
 
-#ifndef CONFIG_SPL_BUILD
-int board_early_init_f(void)
-{
-	struct udevice *regulator;
-	int ret;
-
-	ret = regulator_get_by_platname("vcc5v0_host", &regulator);
-	if (ret) {
-		debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
-		goto out;
-	}
-
-	ret = regulator_set_enable(regulator, true);
-	if (ret)
-		debug("%s vcc5v0-host-en set fail! ret %d\n", __func__, ret);
-out:
-	return 0;
-}
-
-#else
+#ifdef CONFIG_SPL_BUILD
 
 #define PMUGRF_BASE	0xff320000
 #define GPIO0_BASE	0xff720000
diff --git a/board/pine64/pinebook-pro-rk3399/pinebook-pro-rk3399.c b/board/pine64/pinebook-pro-rk3399/pinebook-pro-rk3399.c
index 5e758ea..0001022 100644
--- a/board/pine64/pinebook-pro-rk3399/pinebook-pro-rk3399.c
+++ b/board/pine64/pinebook-pro-rk3399/pinebook-pro-rk3399.c
@@ -11,32 +11,10 @@
 #include <asm/arch-rockchip/grf_rk3399.h>
 #include <asm/arch-rockchip/hardware.h>
 #include <linux/printk.h>
-#include <power/regulator.h>
 
 #define GRF_IO_VSEL_BT565_SHIFT 0
 #define PMUGRF_CON0_VSEL_SHIFT 8
 
-#ifndef CONFIG_SPL_BUILD
-int board_early_init_f(void)
-{
-	struct udevice *regulator;
-	int ret;
-
-	ret = regulator_get_by_platname("vcc5v0_usb", &regulator);
-	if (ret) {
-		pr_debug("%s vcc5v0_usb init fail! ret %d\n", __func__, ret);
-		goto out;
-	}
-
-	ret = regulator_set_enable(regulator, true);
-	if (ret)
-		pr_debug("%s vcc5v0-host-en-gpio set fail! ret %d\n", __func__, ret);
-
-out:
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_MISC_INIT_R
 static void setup_iodomain(void)
 {
diff --git a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
index c9b0d5a..06dc512 100644
--- a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
+++ b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
@@ -11,33 +11,11 @@
 #include <asm/arch-rockchip/clock.h>
 #include <asm/arch-rockchip/grf_rk3399.h>
 #include <asm/arch-rockchip/hardware.h>
-#include <power/regulator.h>
 
 #define GRF_IO_VSEL_BT565_GPIO2AB 1
 #define GRF_IO_VSEL_AUDIO_GPIO3D4A 2
 #define PMUGRF_CON0_VSEL_SHIFT 8
 
-#ifndef CONFIG_SPL_BUILD
-int board_early_init_f(void)
-{
-	struct udevice *regulator;
-	int ret;
-
-	ret = regulator_get_by_platname("vcc5v0_usb", &regulator);
-	if (ret) {
-		pr_debug("%s vcc5v0_usb init fail! ret %d\n", __func__, ret);
-		goto out;
-	}
-
-	ret = regulator_set_enable(regulator, true);
-	if (ret)
-		pr_debug("%s vcc5v0-host-en-gpio set fail! ret %d\n", __func__, ret);
-
-out:
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_MISC_INIT_R
 static void setup_iodomain(void)
 {
diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
index 3c773d0..ebdd74a 100644
--- a/board/rockchip/evb_rk3399/evb-rk3399.c
+++ b/board/rockchip/evb_rk3399/evb-rk3399.c
@@ -10,7 +10,6 @@
 #include <log.h>
 #include <asm/arch-rockchip/periph.h>
 #include <linux/kernel.h>
-#include <power/regulator.h>
 
 #define ROCKPI4_UPDATABLE_IMAGES	2
 
@@ -25,25 +24,6 @@
 #endif
 
 #ifndef CONFIG_SPL_BUILD
-int board_early_init_f(void)
-{
-	struct udevice *regulator;
-	int ret;
-
-	ret = regulator_get_by_platname("vcc5v0_host", &regulator);
-	if (ret) {
-		debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
-		goto out;
-	}
-
-	ret = regulator_set_enable(regulator, true);
-	if (ret)
-		debug("%s vcc5v0-host-en set fail! ret %d\n", __func__, ret);
-
-out:
-	return 0;
-}
-
 #if defined(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) && defined(CONFIG_EFI_PARTITION)
 static bool board_is_rockpi_4b(void)
 {