wireguard: selftests: remove CONFIG_SPARSEMEM_VMEMMAP=y from qemu kernel config

It's no longer user-selectable (and the default was already "y"), so
let's just drop it.

It was never really relevant to the wireguard selftests either way.

Cc: Shuah Khan <[email protected]>
Acked-by: Mike Rapoport (Microsoft) <[email protected]>
Reviewed-by: Lorenzo Stoakes <[email protected]>
Reviewed-by: Liam R. Howlett <[email protected]>
Signed-off-by: David Hildenbrand <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: davidhildenbrand

tools/testing/selftests/wireguard/qemu/kernel.config

@@ -48,7 +48,6 @@ CONFIG_JUMP_LABEL=y
 CONFIG_FUTEX=y
 CONFIG_SHMEM=y
 CONFIG_SLUB=y
-CONFIG_SPARSEMEM_VMEMMAP=y
 CONFIG_SMP=y
 CONFIG_SCHED_SMT=y
 CONFIG_SCHED_MC=y