wireguard: selftests: update config fragments

The kernel.config and debug.config fragments in wireguard selftests mention
some config symbols that have been reworked:

Commit c5665868 ("mm: kmemleak: use the memory pool for early
allocations") removes the config DEBUG_KMEMLEAK_EARLY_LOG_SIZE and since
then, the config's feature is available without further configuration.

Commit 4675ff05 ("kmemcheck: rip it out") removes kmemcheck and the
corresponding arch config HAVE_ARCH_KMEMCHECK. There is no need for this
config.

Commit 3bf195ae ("netfilter: nat: merge nf_nat_ipv4,6 into nat core")
removes the config NF_NAT_IPV4 and since then, the config's feature is
available without further configuration.

Commit 41a2901e ("rcu: Remove SPARSE_RCU_POINTER Kconfig option")
removes the config SPARSE_RCU_POINTER and since then, the config's feature
is enabled by default.

Commit dfb4357d ("time: Remove CONFIG_TIMER_STATS") removes the feature
and config CONFIG_TIMER_STATS without any replacement.

Commit 3ca17b1f ("lib/ubsan: remove null-pointer checks") removes the
check and config UBSAN_NULL without any replacement.

Adjust the config fragments to those changes in configs.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -18,15 +18,12 @@ CONFIG_DEBUG_VM=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_HAVE_ARCH_KMEMCHECK=y
 CONFIG_HAVE_ARCH_KASAN=y
 CONFIG_KASAN=y
 CONFIG_KASAN_INLINE=y
 CONFIG_UBSAN=y
 CONFIG_UBSAN_SANITIZE_ALL=y
-CONFIG_UBSAN_NULL=y
 CONFIG_DEBUG_KMEMLEAK=y
-CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_SHIRQ=y
 CONFIG_WQ_WATCHDOG=y
@@ -35,7 +32,6 @@ CONFIG_SCHED_INFO=y
 CONFIG_SCHEDSTATS=y
 CONFIG_SCHED_STACK_END_CHECK=y
 CONFIG_DEBUG_TIMEKEEPING=y
-CONFIG_TIMER_STATS=y
 CONFIG_DEBUG_PREEMPT=y
 CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_DEBUG_SPINLOCK=y
@@ -49,7 +45,6 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_PLIST=y
 CONFIG_PROVE_RCU=y
-CONFIG_SPARSE_RCU_POINTER=y
 CONFIG_RCU_CPU_STALL_TIMEOUT=21
 CONFIG_RCU_TRACE=y
 CONFIG_RCU_EQS_DEBUG=y

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

@@ -19,7 +19,6 @@ CONFIG_NETFILTER_XTABLES=y
 CONFIG_NETFILTER_XT_NAT=y
 CONFIG_NETFILTER_XT_MATCH_LENGTH=y
 CONFIG_NETFILTER_XT_MARK=y
-CONFIG_NF_NAT_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_MANGLE=y