remove check-in .def and ignore .sym files

tls/tls.def

@@ -1,72 +0,0 @@
-EXPORTS
-tls_accept_cbs
-tls_accept_fds
-tls_accept_socket
-tls_client
-tls_close
-tls_config_add_keypair_file
-tls_config_add_keypair_mem
-tls_config_clear_keys
-tls_config_error
-tls_config_free
-tls_config_insecure_noverifycert
-tls_config_insecure_noverifyname
-tls_config_insecure_noverifytime
-tls_config_new
-tls_config_ocsp_require_stapling
-tls_config_parse_protocols
-tls_config_prefer_ciphers_client
-tls_config_prefer_ciphers_server
-tls_config_set_alpn
-tls_config_set_ca_file
-tls_config_set_ca_mem
-tls_config_set_ca_path
-tls_config_set_cert_file
-tls_config_set_cert_mem
-tls_config_set_ciphers
-tls_config_set_dheparams
-tls_config_set_ecdhecurve
-tls_config_set_key_file
-tls_config_set_key_mem
-tls_config_set_keypair_file
-tls_config_set_keypair_mem
-tls_config_set_protocols
-tls_config_set_verify_depth
-tls_config_verify
-tls_config_verify_client
-tls_config_verify_client_optional
-tls_configure
-tls_conn_alpn_selected
-tls_conn_cipher
-tls_conn_servername
-tls_conn_version
-tls_connect
-tls_connect_cbs
-tls_connect_fds
-tls_connect_servername
-tls_connect_socket
-tls_error
-tls_free
-tls_handshake
-tls_init
-tls_load_file
-tls_ocsp_process_response
-tls_peer_cert_contains_name
-tls_peer_cert_hash
-tls_peer_cert_issuer
-tls_peer_cert_notafter
-tls_peer_cert_notbefore
-tls_peer_cert_provided
-tls_peer_cert_subject
-tls_peer_ocsp_cert_status
-tls_peer_ocsp_crl_reason
-tls_peer_ocsp_next_update
-tls_peer_ocsp_response_status
-tls_peer_ocsp_result
-tls_peer_ocsp_revocation_time
-tls_peer_ocsp_this_update
-tls_peer_ocsp_url
-tls_read
-tls_reset
-tls_server
-tls_write