soc/tegra: pmc: Remove some old and deprecated functions and constants

These TEGRA_IO_RAIL_... functions and constants have been deprecated in
commit 21b49910 ("soc/tegra: pmc: Add I/O pad voltage support") in
2016-11.

There seems to be no users since kernel 4.16.

Remove them now.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/soc/tegra/pmc.c

@@ -1777,30 +1777,6 @@ static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
 	return TEGRA_IO_PAD_VOLTAGE_3V3;
 }
 
-/**
- * tegra_io_rail_power_on() - enable power to I/O rail
- * @id: Tegra I/O pad ID for which to enable power
- *
- * See also: tegra_io_pad_power_enable()
- */
-int tegra_io_rail_power_on(unsigned int id)
-{
-	return tegra_io_pad_power_enable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_on);
-
-/**
- * tegra_io_rail_power_off() - disable power to I/O rail
- * @id: Tegra I/O pad ID for which to disable power
- *
- * See also: tegra_io_pad_power_disable()
- */
-int tegra_io_rail_power_off(unsigned int id)
-{
-	return tegra_io_pad_power_disable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_off);
-
 #ifdef CONFIG_PM_SLEEP
 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
 {

include/soc/tegra/pmc.h

@@ -148,10 +148,6 @@ enum tegra_io_pad {
 	TEGRA_IO_PAD_AO_HV,
 };
 
-/* deprecated, use TEGRA_IO_PAD_{HDMI,LVDS} instead */
-#define TEGRA_IO_RAIL_HDMI	TEGRA_IO_PAD_HDMI
-#define TEGRA_IO_RAIL_LVDS	TEGRA_IO_PAD_LVDS
-
 #ifdef CONFIG_SOC_TEGRA_PMC
 int tegra_powergate_power_on(unsigned int id);
 int tegra_powergate_power_off(unsigned int id);
@@ -164,10 +160,6 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
 int tegra_io_pad_power_enable(enum tegra_io_pad id);
 int tegra_io_pad_power_disable(enum tegra_io_pad id);
 
-/* deprecated, use tegra_io_pad_power_{enable,disable}() instead */
-int tegra_io_rail_power_on(unsigned int id);
-int tegra_io_rail_power_off(unsigned int id);
-
 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode);
 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode);
 
@@ -211,16 +203,6 @@ static inline int tegra_io_pad_get_voltage(enum tegra_io_pad id)
 	return -ENOSYS;
 }
 
-static inline int tegra_io_rail_power_on(unsigned int id)
-{
-	return -ENOSYS;
-}
-
-static inline int tegra_io_rail_power_off(unsigned int id)
-{
-	return -ENOSYS;
-}
-
 static inline void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
 {
 }