x86/um/vdso: Drop VDSO64-y from Makefile

[ Upstream commit 3c9b904 ]

This symbol is unnecessary, remove it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251013-uml-vdso-cleanup-v1-4-a079c7adcc69@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: d1895c1 ("x86/um: fix vDSO installation")
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: t-8ch

arch/x86/um/vdso/Makefile

@@ -3,16 +3,13 @@
 # Building vDSO images for x86.
 #
 
-VDSO64-y		:= y
-
-vdso-install-$(VDSO64-y)	+= vdso.so
-
+vdso-install-y += vdso.so
 
 # files to link into the vdso
 vobjs-y := vdso-note.o um_vdso.o
 
 # files to link into kernel
-obj-$(VDSO64-y)			+= vdso.o vma.o
+obj-y += vdso.o vma.o
 
 vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)