Removed double / empty titles and descriptions

interface/web/dns/templates/dns_a_edit.htm

interface/web/dns/templates/dns_aaaa_edit.htm

interface/web/dns/templates/dns_alias_edit.htm

interface/web/dns/templates/dns_caa_edit.htm

interface/web/dns/templates/dns_cname_edit.htm

interface/web/dns/templates/dns_dkim_edit.htm

interface/web/dns/templates/dns_dmarc_edit.htm

interface/web/dns/templates/dns_ds_edit.htm

interface/web/dns/templates/dns_hinfo_edit.htm

interface/web/dns/templates/dns_import.htm

interface/web/dns/templates/dns_loc_edit.htm

interface/web/dns/templates/dns_mx_edit.htm

interface/web/dns/templates/dns_ns_edit.htm

interface/web/dns/templates/dns_ptr_edit.htm

interface/web/dns/templates/dns_records_edit.htm

interface/web/dns/templates/dns_rp_edit.htm

interface/web/dns/templates/dns_slave_edit.htm

interface/web/dns/templates/dns_soa_edit.htm

interface/web/dns/templates/dns_spf_edit.htm

interface/web/dns/templates/dns_srv_edit.htm