diff --git a/src/confd/yang/ietf-if-vlan-encapsulation@2023-01-26.yang b/src/confd/yang/ietf-if-vlan-encapsulation@2023-01-26.yang
deleted file mode 100644
index 58862cbc..00000000
--- a/src/confd/yang/ietf-if-vlan-encapsulation@2023-01-26.yang
+++ /dev/null
@@ -1,155 +0,0 @@
-module ietf-if-vlan-encapsulation {
-  yang-version 1.1;
-  namespace "urn:ietf:params:xml:ns:yang:ietf-if-vlan-encapsulation";
-  prefix if-vlan;
-
-  import ietf-interfaces {
-    prefix if;
-    reference
-      "RFC 8343: A YANG Data Model For Interface Management";
-  }
-
-  import iana-if-type {
-    prefix ianaift;
-    reference
-      "RFC 7224: IANA Interface Type YANG Module";
-  }
-
-  import ieee802-dot1q-types {
-    prefix dot1q-types;
-    revision-date 2022-10-29;
-    reference
-      "IEEE Std 802.1Q-2022: IEEE Standard for Local and
-       metropolitan area networks -- Bridges and Bridged Networks";
-  }
-
-  import ietf-if-extensions {
-    prefix if-ext;
-    reference
-      "RFC XXXX: Common Interface Extension YANG Data Models";
-  }
-
-  organization
-    "IETF NETMOD (NETCONF Data Modeling Language) Working Group";
-
-  contact
-    "WG Web:   <http://tools.ietf.org/wg/netmod/>
-     WG List:  <mailto:netmod@ietf.org>
-
-     Editor:   Robert Wilton
-               <mailto:rwilton@cisco.com>";
-
-  description
-    "This YANG module models configuration to classify IEEE 802.1Q
-     VLAN tagged Ethernet traffic by exactly matching the tag type
-     and VLAN identifier of one or two 802.1Q VLAN tags in the frame.
-
-     Copyright (c) 2023 IETF Trust and the persons identified as
-     authors of the code.  All rights reserved.
-
-     Redistribution and use in source and binary forms, with or
-     without modification, is permitted pursuant to, and subject to
-     the license terms contained in, the Revised BSD License set
-     forth in Section 4.c of the IETF Trust's Legal Provisions
-     Relating to IETF Documents
-     (https://trustee.ietf.org/license-info).
-
-     This version of this YANG module is part of RFC XXXX
-     (https://www.rfc-editor.org/info/rfcXXXX); see the RFC itself
-     for full legal notices.
-
-     The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
-     NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
-     'MAY', and 'OPTIONAL' in this document are to be interpreted as
-     described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
-     they appear in all capitals, as shown here.";
-
-  revision 2023-01-26 {
-    description
-      "Latest draft revision";
-    reference
-      "RFC XXXX: Sub-interface VLAN YANG Data Models";
-  }
-
-  augment "/if:interfaces/if:interface/if-ext:encapsulation/"
-        + "if-ext:encaps-type" {
-    when "derived-from-or-self(../if:type,
-                               'ianaift:ethernetCsmacd') or
-          derived-from-or-self(../if:type,
-                               'ianaift:ieee8023adLag') or
-          derived-from-or-self(../if:type, 'ianaift:l2vlan') or
-          derived-from-or-self(../if:type,
-                               'if-ext:ethSubInterface')" {
-        description
-          "Applies only to Ethernet-like interfaces and
-           sub-interfaces.";
-    }
-
-    description
-      "Augment the generic interface encapsulation with basic 802.1Q
-       VLAN tag classifications";
-
-    case dot1q-vlan {
-      container dot1q-vlan {
-
-        description
-          "Classifies 802.1Q VLAN tagged Ethernet frames to a
-           sub-interface (or interface) by exactly matching the
-           number of tags, tag type(s) and VLAN identifier(s).
-
-           Only frames matching the classification configured on a
-           sub-interface/interface are processed on that
-           sub-interface/interface.
-
-           Frames that do not match any sub-interface are processed
-           directly on the parent interface, if it is associated with
-           a forwarding instance, otherwise they are dropped.";
-
-        container outer-tag {
-          must 'tag-type = "dot1q-types:s-vlan" or '
-             + 'tag-type = "dot1q-types:c-vlan"' {
-
-            error-message
-              "Only C-VLAN and S-VLAN tags can be matched.";
-
-            description
-              "For IEEE 802.1Q interoperability, only C-VLAN and
-               S-VLAN tags are matched.";
-          }
-
-          description
-            "Specifies the VLAN tag values to match against the
-             outermost (first) 802.1Q VLAN tag in the frame.";
-
-          uses dot1q-types:dot1q-tag-classifier-grouping;
-        }
-
-        container second-tag {
-          must '../outer-tag/tag-type = "dot1q-types:s-vlan" and '
-             + 'tag-type = "dot1q-types:c-vlan"' {
-
-            error-message
-              "When matching two 802.1Q VLAN tags, the outermost
-               (first) tag in the frame MUST be specified and be of
-               S-VLAN type and the second tag in the frame must be of
-               C-VLAN tag type.";
-
-            description
-              "For IEEE 802.1Q interoperability, when matching two
-               802.1Q VLAN tags, it is REQUIRED that the outermost
-               tag exists and is an S-VLAN, and the second tag is a
-               C-VLAN.";
-          }
-
-          presence "Classify frames that have two 802.1Q VLAN tags.";
-
-          description
-            "Specifies the VLAN tag values to match against the
-             second outermost 802.1Q VLAN tag in the frame.";
-
-          uses dot1q-types:dot1q-tag-classifier-grouping;
-        }
-      }
-    }
-  }
-}