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diff --git a/external/unbound/validator/autotrust.h b/external/unbound/validator/autotrust.h
deleted file mode 100644
index dbaf5126a..000000000
--- a/external/unbound/validator/autotrust.h
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * validator/autotrust.h - RFC5011 trust anchor management for unbound.
- *
- * Copyright (c) 2009, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * Contains autotrust definitions.
- */
-
-#ifndef VALIDATOR_AUTOTRUST_H
-#define VALIDATOR_AUTOTRUST_H
-#include "util/rbtree.h"
-#include "util/data/packed_rrset.h"
-struct val_anchors;
-struct trust_anchor;
-struct ub_packed_rrset_key;
-struct module_env;
-struct val_env;
-struct sldns_buffer;
-
-/** Autotrust anchor states */
-typedef enum {
-	AUTR_STATE_START   = 0,
-	AUTR_STATE_ADDPEND = 1,
-	AUTR_STATE_VALID   = 2,
-	AUTR_STATE_MISSING = 3,
-	AUTR_STATE_REVOKED = 4,
-	AUTR_STATE_REMOVED = 5
-} autr_state_type;
-
-/** 
- * Autotrust metadata for one trust anchor key.
- */
-struct autr_ta {
-	/** next key */
-	struct autr_ta* next;
-	/** the RR */
-	uint8_t* rr;
-	/** length of rr */
-	size_t rr_len, dname_len;
-	/** last update of key state (new pending count keeps date the same) */
-	time_t last_change;
-	/** 5011 state */
-	autr_state_type s;
-	/** pending count */
-	uint8_t pending_count;
-	/** fresh TA was seen */
-	uint8_t fetched;
-	/** revoked TA was seen */
-	uint8_t revoked;
-};
-
-/** 
- * Autotrust metadata for a trust point.
- * This is part of the struct trust_anchor data.
- */
-struct autr_point_data {
-	/** file to store the trust point in. chrootdir already applied. */
-	char* file;
-	/** rbtree node for probe sort, key is struct trust_anchor */
-	rbnode_type pnode;
-
-	/** the keys */
-	struct autr_ta* keys;
-
-	/** last queried DNSKEY set 
-	 * Not all failures are captured in this entry.
-	 * If the validator did not even start (e.g. timeout or localservfail),
-	 * then the last_queried and query_failed values are not updated.
-	 */
-	time_t last_queried;
-	/** last successful DNSKEY set */
-	time_t last_success;
-	/** next probe time */
-	time_t next_probe_time;
-
-	/** when to query if !failed */
-	time_t query_interval;
-	/** when to retry if failed */
-	time_t retry_time;
-
-	/** 
-	 * How many times did it fail. diagnostic only (has no effect).
-	 * Only updated if there was a dnskey rrset that failed to verify.
-	 */
-	uint8_t query_failed;
-	/** true if the trust point has been revoked */
-	uint8_t revoked;
-};
-
-/** 
- * Autotrust global metadata.
- */
-struct autr_global_data {
-	/** rbtree of autotrust anchors sorted by next probe time.
-	 * When time is equal, sorted by anchor class, name. */
-	rbtree_type probe;
-};
-
-/**
- * Create new global 5011 data structure.
- * @return new structure or NULL on malloc failure.
- */
-struct autr_global_data* autr_global_create(void);
-
-/**
- * Delete global 5011 data structure.
- * @param global: global autotrust state to delete.
- */
-void autr_global_delete(struct autr_global_data* global);
-
-/**
- * See if autotrust anchors are configured and how many.
- * @param anchors: the trust anchors structure.
- * @return number of autotrust trust anchors
- */
-size_t autr_get_num_anchors(struct val_anchors* anchors);
-
-/**
- * Process probe timer.  Add new probes if needed.
- * @param env: module environment with time, with anchors and with the mesh.
- * @return time of next probe (in seconds from now).
- * 	If 0, then there is no next probe anymore (trust points deleted).
- */
-time_t autr_probe_timer(struct module_env* env);
-
-/** probe tree compare function */
-int probetree_cmp(const void* x, const void* y);
-
-/**
- * Read autotrust file.
- * @param anchors: the anchors structure.
- * @param nm: name of the file (copied).
- * @return false on failure.
- */
-int autr_read_file(struct val_anchors* anchors, const char* nm);
-
-/**
- * Write autotrust file.
- * @param env: environment with scratch space.
- * @param tp: trust point to write.
- */
-void autr_write_file(struct module_env* env, struct trust_anchor* tp);
-
-/**
- * Delete autr anchor, deletes the autr data but does not do
- * unlinking from trees, caller does that.
- * @param tp: trust point to delete.
- */
-void autr_point_delete(struct trust_anchor* tp);
-
-/**
- * Perform autotrust processing.
- * @param env: qstate environment with the anchors structure.
- * @param ve: validator environment for verification of rrsigs.
- * @param tp: trust anchor to process.
- * @param dnskey_rrset: DNSKEY rrset probed (can be NULL if bad prime result).
- * 	allocated in a region. Has not been validated yet.
- * @return false if trust anchor was revoked completely.
- * 	Otherwise logs errors to log, does not change return value.
- * 	On errors, likely the trust point has been unchanged.
- */
-int autr_process_prime(struct module_env* env, struct val_env* ve,
-	struct trust_anchor* tp, struct ub_packed_rrset_key* dnskey_rrset);
-
-/**
- * Debug printout of rfc5011 tracked anchors
- * @param anchors: all the anchors.
- */
-void autr_debug_print(struct val_anchors* anchors);
-
-/** callback for query answer to 5011 probe */
-void probe_answer_cb(void* arg, int rcode, struct sldns_buffer* buf, 
-	enum sec_status sec, char* errinf);
-
-#endif /* VALIDATOR_AUTOTRUST_H */