testing: make curve25519 the default DH group

testing/tests/ikev2/alg-blowfish/hosts/carol/etc/strongswan.conf

@@ -1,6 +1,5 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
 charon {
-  dh_exponent_ansi_x9_42 = no
-  load = aes des blowfish md5 sha1 sha2 pem pkcs1 gmp curl random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+  load = random nonce aes blowfish md5 sha1 sha2 pem pkcs1 gmp curl x509 revocation hmac stroke kernel-netlink socket-default updown
 }

testing/tests/ikev2/alg-blowfish/hosts/dave/etc/strongswan.conf

@@ -1,6 +1,5 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
 charon {
-  dh_exponent_ansi_x9_42 = no
-  load = aes des blowfish md5 sha1 sha2 pem pkcs1 gmp curl random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+  load = random nonce blowfish sha1 sha2 pem pkcs1 gmp curl x509 revocation hmac stroke kernel-netlink socket-default updown
 }

testing/tests/ikev2/alg-blowfish/hosts/moon/etc/strongswan.conf

@@ -1,6 +1,5 @@
 # /etc/strongswan.conf - strongSwan configuration file
 
 charon {
-  dh_exponent_ansi_x9_42 = no
-  load = aes des blowfish md5 sha1 sha2 pem pkcs1 gmp curl random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+  load = random nonce blowfish sha1 sha2 pem pkcs1 gmp curl x509 revocation hmac stroke kernel-netlink socket-default updown
 }