powerpc/powernv/vas: Remove a stray line in Makefile

Remove a bogus line from arch/powerpc/platforms/powernv/Makefile that
was added by commit ece4e512 ("powerpc/vas: Export HVWC to debugfs").
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/Makefile

@@ -16,5 +16,4 @@ obj-$(CONFIG_OPAL_PRD)	+= opal-prd.o
 obj-$(CONFIG_PERF_EVENTS) += opal-imc.o
 obj-$(CONFIG_PPC_MEMTRACE)	+= memtrace.o
 obj-$(CONFIG_PPC_VAS)	+= vas.o vas-window.o vas-debug.o
-obj-$(CONFIG_PPC_FTW)	+= nx-ftw.o
 obj-$(CONFIG_OCXL_BASE)	+= ocxl.o