powerpc/ps3: Remove MEMORY_HOTPLUG requirement

The dependency on hotplug memory was removed, so
remove the dependency in the Kconfig.
Signed-off-by: NAndre Heider <a.heider@gmail.com>
Signed-off-by: NGeoff Levand <geoff@infradead.org>

arch/powerpc/platforms/ps3/Kconfig

@@ -7,7 +7,6 @@ config PPC_PS3
 	select USB_OHCI_BIG_ENDIAN_MMIO
 	select USB_ARCH_HAS_EHCI
 	select USB_EHCI_BIG_ENDIAN_MMIO
-	select MEMORY_HOTPLUG
 	select PPC_PCI_CHOICE
 	help
 	  This option enables support for the Sony PS3 game console