sh: remove sh5 support

sh5 never became a product and has probably never really worked.

Remove it by recursively deleting all associated Kconfig options
and all corresponding files.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rich Felker <dalias@libc.org>
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 5c8a2eb..6c39d24 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -15,8 +15,7 @@
 
 config PAGE_OFFSET
 	hex
-	default "0x80000000" if MMU && SUPERH32
-	default "0x20000000" if MMU && SUPERH64
+	default "0x80000000" if MMU
 	default "0x00000000"
 
 config FORCE_MAX_ZONEORDER
@@ -72,12 +71,11 @@
 
 config 29BIT
 	def_bool !32BIT
-	depends on SUPERH32
 	select UNCACHED_MAPPING
 
 config 32BIT
 	bool
-	default y if CPU_SH5 || !MMU
+	default !MMU
 
 config PMB
 	bool "Support 32-bit physical addressing through PMB"
@@ -152,7 +150,7 @@
 
 config IOREMAP_FIXED
        def_bool y
-       depends on X2TLB || SUPERH64
+       depends on X2TLB
 
 config UNCACHED_MAPPING
 	bool
@@ -184,7 +182,7 @@
 
 config PAGE_SIZE_64KB
 	bool "64kB"
-	depends on !MMU || CPU_SH4 || CPU_SH5
+	depends on !MMU || CPU_SH4
 	help
 	  This enables support for 64kB pages, possible on all SH-4
 	  CPUs and later.
@@ -216,10 +214,6 @@
 	bool "64MB"
 	depends on X2TLB
 
-config HUGETLB_PAGE_SIZE_512MB
-	bool "512MB"
-	depends on CPU_SH5
-
 endchoice
 
 config SCHED_MC
@@ -242,7 +236,7 @@
 
 choice
 	prompt "Cache mode"
-	default CACHE_WRITEBACK if CPU_SH2A || CPU_SH3 || CPU_SH4 || CPU_SH5
+	default CACHE_WRITEBACK if CPU_SH2A || CPU_SH3 || CPU_SH4
 	default CACHE_WRITETHROUGH if (CPU_SH2 && !CPU_SH2A)
 
 config CACHE_WRITEBACK