Kill PACKET_starts() from bad_dtls_test
Kill PACKET_starts() from bad_dtls_test

In OpenSSL upstream we stopped doing it this way because we can use
PACKET_get_length_prefixed_1() && PACKET_equal() instead. Might as well
be consistent.

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

brandt/openconnect,brandt/openconnect,cernekee/openconnect,mtmiller/openconnect,nmav/openconnect-mine,cernekee/openconnect,mtmiller/openconnect,cernekee/openconnect,nmav/openconnect-mine,nmav/openconnect-mine,cernekee/openconnect,nmav/openconnect-mine,mtmiller/openconnect,mtmiller/openconnect,brandt/openconnect,brandt/openconnect