Automatically work out if attributes are internal (because they are not used in objectclasses)

app/Classes/LDAP/Attribute/Factory.php

@@ -24,13 +24,7 @@ class Factory
 		'cacertificate' => Certificate::class,
 		'certificaterevocationlist' => CertificateList::class,
 		'createtimestamp' => Internal\Timestamp::class,
-		'creatorsname' => Internal\DN::class,
 		'configcontext' => Schema\Generic::class,
-		'contextcsn' => Internal\CSN::class,
-		'entrycsn' => Internal\CSN::class,
-		'entrydn' => Internal\DN::class,
-		'entryuuid' => Internal\UUID::class,
-		'etag' => Internal\Etag::class,
 		'krblastfailedauth' => Attribute\NoAttrTags\Generic::class,
 		'krblastpwdchange' => Attribute\NoAttrTags\Generic::class,
 		'krblastsuccessfulauth' => Attribute\NoAttrTags\Generic::class,
@@ -39,17 +33,11 @@ class Factory
 		'krbprincipalkey' => KrbPrincipalKey::class,
 		'krbticketflags' => KrbTicketFlags::class,
 		'gidnumber' => GidNumber::class,
-		'hassubordinates' => Internal\HasSubordinates::class,
 		'jpegphoto' => Binary\JpegPhoto::class,
 		'modifytimestamp' => Internal\Timestamp::class,
-		'modifiersname' => Internal\DN::class,
 		'monitorcontext' => Schema\Generic::class,
 		'namingcontexts' => Schema\Generic::class,
-		'numsubordinates' => Internal\NumSubordinates::class,
 		'objectclass' => ObjectClass::class,
-		'pwdpolicysubentry' => Internal\PwdPolicySubentry::class,
-		'structuralobjectclass' => Internal\StructuralObjectClass::class,
-		'subschemasubentry' => Internal\SubschemaSubentry::class,
 		'supportedcontrol' => Schema\OID::class,
 		'supportedextension' => Schema\OID::class,
 		'supportedfeatures' => Schema\OID::class,