diff --git a/extra_docs/custom_hooks_sample.py b/extra_docs/custom_hooks_sample.py
deleted file mode 100644
index 47bb4d6..0000000
--- a/extra_docs/custom_hooks_sample.py
+++ /dev/null
@@ -1,48 +0,0 @@
-"""
-This is a sample script that can be passed to grab-site --custom-hooks=. It
-1) drops http:// URLs before they can be queued
-2) aborts responses that have a Content-Type: that starts with 'audio/'
-3) queues additional URLs on Twitter to get original-quality images
-
-For self-help on writing hooks, `git clone https://github.com/chfoo/wpull`,
-`git checkout v1.2.3`, and read wpull/hook.py.
-"""
-
-import re
-
-accept_url_grabsite = wpull_hook.callbacks.accept_url
-def accept_url(url_info, record_info, verdict, reasons):
-	url = url_info['url']
-	if url.startswith("http://"):
-		print("Dropping insecure URL %s" % url)
-		return False
-	return accept_url_grabsite(url_info, record_info, verdict, reasons)
-
-def has_content_type_audio(response_info):
-	try:
-		t = list(p for p in response_info["fields"] if p[0] == "Content-Type")[0][1]
-		return t.lower().startswith("audio/")
-	except (IndexError, ValueError):
-		return False
-
-handle_pre_response_grabsite = wpull_hook.callbacks.handle_pre_response
-def handle_pre_response(url_info, url_record, response_info):
-	url = url_info['url']
-	if has_content_type_audio(response_info):
-		print("Dropping %s because it has audio mime type" % url)
-		return wpull_hook.actions.FINISH
-	return handle_pre_response_grabsite(url_info, url_record, response_info)
-
-def get_urls(filename, url_info, document_info):
-	url = url_info["url"]
-	# If we see this URL, also queue the URL for the :orig quality image
-	if url.startswith("https://pbs.twimg.com/media/"):
-		new_url = re.sub(":[a-z]{1,10}$", "", url) + ":orig"
-		# see wpull/item.py:LinkType
-		extra_urls = [dict(url=new_url, link_type="media", inline=True)]
-		print("Queueing %r" % (extra_urls,))
-		return extra_urls
-
-wpull_hook.callbacks.accept_url = accept_url
-wpull_hook.callbacks.handle_pre_response = handle_pre_response
-wpull_hook.callbacks.get_urls = get_urls