Fix typo. Remove references to rfc's that are no longer present in directory.

doc/rfc/INDEX

@@ -12,8 +12,6 @@ rfc2696.txt LDAP Simple Paged Result Control (I)
 rfc2713.txt LDAP Java schema (I)
 rfc2714.txt LDAP CORBA schema (I)
 rfc2798.txt LDAP inetOrgPerson schema (I)
-rfc2829.txt LDAPv3: Authentication Methods (PS)
-rfc2830.txt LDAPv3: Start TLS (PS)
 rfc2849.txt LDIFv1 (PS)
 rfc2891.txt LDAPv3: Server Side Sorting of Search Results (PS)
 rfc2926.txt LDAP: Conversion of LDAP Schemas to and from SLP Templates (I)
@@ -39,7 +37,7 @@ rfc3928.txt LDAP Client Update Protocol (PS)
 rfc4013.txt SASLprep (PS)
 rfc4370.txt LDAP Proxied Authorization Control (PS)
 rfc4373.txt LBURP (I)
-rfc4404.txt LDAP Schema for UDDI (I)
+rfc4403.txt LDAP Schema for UDDI (I)
 rfc4510.txt LDAP Technical Specification Roadmap (PS)
 rfc4511.txt LDAP: The Protocol (PS)
 rfc4512.txt LDAP: Directory Information Models (PS)