The dtls1_output_cert_chain function no longer exists so remove it from ssl_locl.h
The dtls1_output_cert_chain function no longer exists so remove it from
ssl_locl.h

Reviewed-by: Tim Hudson <eb0be8e447f673b41b10eda09d63cd72526b0a42@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl