Remove misleading (untrue) text about known syntax OID macros.

doc/man/man5/slapd.conf.5

@@ -104,24 +104,7 @@ forms as well as numeric OIDs to be used for the attribute OID and
 attribute syntax OID.
 (See the
 .B objectidentifier
-description.) Currently the syntax name parser is case-sensitive.
-The known syntax names are:
-.RS
-.RS
-.PD 0
-AttributeTypeDescription Audio Binary BitString Certificate CertificateList
-CertificatePair DN DeliveryMethod DirectoryString DITContentRuleDescription
-DITStructureRuleDescription EnhancedGuide FacsimileTelephoneNumber
-GeneralizedTime Guide IA5String Integer MatchingRuleDescription
-MatchingRuleUseDescription MailPreference NameAndOptionalUUID
-NameFormDescription NumericString ObjectClassDescription OID
-OtherMailbox OctetString PostalAddress ProtocolInformation
-PresentationAddress PrintableString SupportedAlgorithm TelephoneNumber
-TeletexTerminalIdentifier TelexNumber UTCTime LDAPSyntaxDescription
-SubstringAssertion NISnetgrouptriple Bootparameter
-.PD
-.RE
-.RE
+description.) 
 .RE
 .TP
 .B concurrency <integer>