dirmngr: Remove superfluous attribute from the LDAP schema.

--

I accidently added a gpgSubCertID attribute not realizing that the
pgpSubKeyID already carries the long keyid.  Remove that.  Note that
the pgpkeyID has the short keyid and the long keyid has the name
pgpCertID.

Signed-off-by: Werner Koch <wk@gnupg.org>

doc/ldap/gnupg-ldap-ad-schema.ldif

@@ -3,7 +3,7 @@
 # Schema for an OpenPGP LDAP keyserver.  This is a slighly enhanced
 # version of the original LDAP schema used for PGP keyservers as
 # installed at quite some sites.
-# Revision: 2020-12-08
+# Revision: 2020-12-15
 
 # Some notes:
 # - Backup your AD! It is not possible to revert changes of the schema.
@@ -181,7 +181,7 @@ oMSyntax: 64
 isSingleValued: TRUE
 schemaIDGUID:: 9AbnpaXqQR6d3S5OZomYCw==
 
-# The Subkey key ids
+# The Subkey key ids (16 hex digits)
 dn: CN=pgpSubKeyID,CN=Schema,CN=Configuration,DC=EXAMPLEDC
 changetype: ntdsSchemaAdd
 objectClass: attributeSchema
@@ -254,18 +254,6 @@ oMSyntax: 64
 isSingleValued: FALSE
 schemaIDGUID:: 9AbnpaXqQR6d3S5OZomYEQ==
 
-# A list of hex encoded long keyids of all subkeys.
-dn: CN=gpgSubCertID,CN=Schema,CN=Configuration,DC=EXAMPLEDC
-changetype: ntdsSchemaAdd
-objectClass: attributeSchema
-attributeID: 1.3.6.1.4.1.11591.2.4.1.4
-lDAPDisplayName: gpgSubCertID
-description: OpenPGP long subkey id
-attributeSyntax: 2.5.5.12
-oMSyntax: 64
-isSingleValued: FALSE
-schemaIDGUID:: 9AbnpaXqQR6d3S5OZomYEg==
-
 # Unused GUIDs:
 #  9AbnpaXqQR6d3S5OZomYEw==
 #  9AbnpaXqQR6d3S5OZomYFA==
@@ -335,7 +323,6 @@ mayContain: pgpKeySize
 mayContain: pgpKeyExpireTime
 mayContain: gpgFingerprint
 mayContain: gpgSubFingerprint
-mayContain: gpgSubCertID
 mayContain: gpgMailbox
 schemaIDGUID:: 9AbnpaXqQR6d3S5OZomYIQ==