sparc64: fix build breakage introduced by percpu-convert-most patchset

Commit e74e396204bfcb67570ba4517b08f5918e69afea incorrectly added
HAVE_LEGACY_PER_CPU_AREA to sparc64 although it already has been
converted to dynamic percpu allocator.  Drop both
HAVE_{LEGACY|DYNAMIC}_PER_CPU_AREA.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Miller <davem@davemloft.net>
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 7a8698b..4f6ed0f 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -92,15 +92,9 @@
 	bool
 	default y
 
-config HAVE_LEGACY_PER_CPU_AREA
-	def_bool y if SPARC64
-
 config HAVE_SETUP_PER_CPU_AREA
 	def_bool y if SPARC64
 
-config HAVE_DYNAMIC_PER_CPU_AREA
-	def_bool y if SPARC64
-
 config GENERIC_HARDIRQS_NO__DO_IRQ
 	bool
 	def_bool y if SPARC64