phosphor: netsnmp: enable des and snmpv1

These non-default configure flags result in a broken build on net-snmp
5.8 and the rationale for their use was never provided in the first
place.  Stick with the defaults.

Change-Id: Ic965a0e8d0ac8f3b41ccfa68d8c155a35a0884c5
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/recipes-protocols/net-snmp/net-snmp_%.bbappend b/recipes-protocols/net-snmp/net-snmp_%.bbappend
index 50ef9a3..c035fa7 100644
--- a/recipes-protocols/net-snmp/net-snmp_%.bbappend
+++ b/recipes-protocols/net-snmp/net-snmp_%.bbappend
@@ -1,6 +1,4 @@
 EXTRA_OECONF += "--disable-mib-loading \
                  --disable-debugging \
                  --disable-md5 \
-                 --disable-des \
-                 --disable-snmpv1 \
                  "