powerpc/configs: Drop MEMORY_HOTREMOVE from ppc64/cell

xxxx

In commit 577ec789a7 ("powerpc/cell: Drop select of MEMORY_HOTPLUG")
we removed the last traces of any dependency between

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/configs/cell_defconfig

@@ -37,7 +37,6 @@ CONFIG_GEN_RTC=y
 CONFIG_BINFMT_MISC=m
 CONFIG_IRQ_ALL_CPUS=y
 CONFIG_NUMA=y
-CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_PPC_64K_PAGES=y
 CONFIG_SCHED_SMT=y
 CONFIG_PCIEPORTBUS=y

arch/powerpc/configs/ppc64_defconfig

@@ -49,7 +49,6 @@ CONFIG_KEXEC=y
 CONFIG_KEXEC_FILE=y
 CONFIG_CRASH_DUMP=y
 CONFIG_IRQ_ALL_CPUS=y
-CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
 CONFIG_SCHED_SMT=y
 CONFIG_HOTPLUG_PCI=y