x86_64: update defconfig

I suggest that we do a little defconfig module trimming.

Reduce number of modules built via defconfig.

diffstat:=

 arch/x86_64/defconfig |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

---

Reduce number of modules built via defconfig.

diffstat:=

 arch/x86_64/defconfig |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -Naurp ./arch/x86_64/defconfig~xdefcfg ./arch/x86_64/defconfig
@@ -543,7 +543,7 @@ CONFIG_TIGON3=y
 # Ethernet (10000 Mbit)
 #
 # CONFIG_IXGB is not set
-CONFIG_S2IO=m
+# CONFIG_S2IO is not set
 # CONFIG_S2IO_NAPI is not set
 # CONFIG_2BUFF_MODE is not set