Fix double-free of vpninfo->dtls_cipher
Fix double-free of vpninfo->dtls_cipher

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

lins05/openconnect,don-johnny/openconnect,certik/openconnect,liiir1985/openconnect,cernekee/openconnect,don-johnny/openconnect,mdutton3/OpenConnect,nmav/openconnect-mine,lins05/openconnect,don-johnny/openconnect,mtmiller/openconnect,liiir1985/openconnect,chadcatlett/openconnect,nmav/openconnect-mine,mdutton3/OpenConnect,ldx/android_external_openconnect,chadcatlett/openconnect,cernekee/openconnect,liiir1985/openconnect,liiir1985/openconnect,matlockx/openconnect,mveplus/openconnect-client,mveplus/openconnect-client,lins05/openconnect,cernekee/openconnect,ldx/android_external_openconnect,mveplus/openconnect-client,matlockx/openconnect,brandt/openconnect,don-johnny/openconnect,neshema/openconnect,neshema/openconnect,neshema/openconnect,chadcatlett/openconnect,brandt/openconnect,certik/openconnect,sihde/openconnect,atyndall/openconnect,atyndall/openconnect,mdutton3/OpenConnect,mveplus/openconnect-client,sihde/openconnect,nmav/openconnect-mine,mtmiller/openconnect,atyndall/openconnect,matlockx/openconnect,certik/openconnect,pbrook/openconnect,nmav/openconnect-mine,mtmiller/openconnect,cernekee/openconnect,atyndall/openconnect,mtmiller/openconnect,brandt/openconnect,pbrook/openconnect,sihde/openconnect,matlockx/openconnect,brandt/openconnect,lins05/openconnect,neshema/openconnect,chadcatlett/openconnect