ARM: EXYNOS: Remove Exynos4415 arch code (SoC not supported anymore)

Support for Exynos4415 is going away because there are no internal nor
external users.

Since commit 46dcf0ff ("ARM: dts: exynos: Remove exynos4415.dtsi"),
the platform cannot be instantiated so remove also the mach code.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Kukjin Kim <kgene@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

arch/arm/mach-exynos/Kconfig

@@ -95,11 +95,6 @@ config SOC_EXYNOS4412
 	default y
 	depends on ARCH_EXYNOS4
 
-config SOC_EXYNOS4415
-	bool "SAMSUNG EXYNOS4415"
-	default y
-	depends on ARCH_EXYNOS4
-
 config SOC_EXYNOS5250
 	bool "SAMSUNG EXYNOS5250"
 	default y

arch/arm/mach-exynos/exynos.c

@@ -210,7 +210,6 @@ static char const *const exynos_dt_compat[] __initconst = {
 	"samsung,exynos4210",
 	"samsung,exynos4212",
 	"samsung,exynos4412",
-	"samsung,exynos4415",
 	"samsung,exynos5",
 	"samsung,exynos5250",
 	"samsung,exynos5260",

arch/arm/mach-exynos/suspend.c

@@ -270,7 +270,6 @@ EXYNOS_PMU_IRQ(exynos3250_pmu_irq, "samsung,exynos3250-pmu");
 EXYNOS_PMU_IRQ(exynos4210_pmu_irq, "samsung,exynos4210-pmu");
 EXYNOS_PMU_IRQ(exynos4212_pmu_irq, "samsung,exynos4212-pmu");
 EXYNOS_PMU_IRQ(exynos4412_pmu_irq, "samsung,exynos4412-pmu");
-EXYNOS_PMU_IRQ(exynos4415_pmu_irq, "samsung,exynos4415-pmu");
 EXYNOS_PMU_IRQ(exynos5250_pmu_irq, "samsung,exynos5250-pmu");
 EXYNOS_PMU_IRQ(exynos5420_pmu_irq, "samsung,exynos5420-pmu");