mm/Kconfig: remove redundant arch depend for memory hotplug

MEMORY_HOTPLUG already depends on ARCH_ENABLE_MEMORY_HOTPLUG which is
selected by the supported architectures, so the following arch depend is
unnecessary.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/Kconfig b/mm/Kconfig
index 03cbfa0..c077765 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -187,7 +187,6 @@
 	bool "Allow for memory hot-add"
 	depends on SPARSEMEM || X86_64_ACPI_NUMA
 	depends on ARCH_ENABLE_MEMORY_HOTPLUG
-	depends on (IA64 || X86 || PPC_BOOK3S_64 || SUPERH || S390)
 
 config MEMORY_HOTPLUG_SPARSE
 	def_bool y