diff --git a/setup/qt5-migrate.py b/setup/qt5-migrate.py
deleted file mode 100644
index 38e3023bed..0000000000
--- a/setup/qt5-migrate.py
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env python2
-# vim:fileencoding=utf-8
-from __future__ import (unicode_literals, division, absolute_import,
-                        print_function)
-
-__license__ = 'GPL v3'
-__copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
-
-# QT5XX: Get rid of the plugin porting stat collection in plugins_mirror.py
-
-# QT5XX: Delete this file after migration is completed
-
-import os, re
-
-def all_py_files():
-    base = os.path.dirname(os.path.dirname(os.path.basename(__file__)))
-    for dirpath, dirname, filenames in os.walk(os.path.join(base, 'src', 'calibre')):
-        for n in filenames:
-            if n.endswith('.py'):
-                yield os.path.join(dirpath, n)
-
-def detect_qvariant():
-    count = 0
-    pat = re.compile(b'|'.join(br'QVariant NONE toDateTime toDate toInt toBool toString\(\) toPyObject canConvert toBitArray toByteArray toHash toFloat toMap toLine toPoint toReal toRect toTime\(\) toUInt toUrl'.split()))  # noqa
-    exclusions = {
-        'src/calibre/gui2/viewer/gestures.py': {'toPoint'},
-        'src/calibre/utils/serve_coffee.py': {'toString()'},
-        'src/calibre/gui2/job_indicator.py': {'toPoint'},
-        'src/calibre/ebooks/pdf/render/engine.py': {'toRect'},
-        'src/calibre/gui2/wizard/send_email.py': {'NONE'},
-    }
-    for path in all_py_files():
-        if os.path.basename(path) in {
-                'BeautifulSoup.py', 'icu.py', 'smtp.py', 'Zeroconf.py', 'date.py', 'apsw_shell.py', } or 'pylrs' in path:
-            continue
-        raw = open(path, 'rb').read()
-        matches = set(pat.findall(raw)) - exclusions.get(path, set())
-        if matches:
-            print (path, '\t', ', '.join(matches))
-            count += 1
-    print ('Detected %d files with possible usage of QVariant' % count)
-
-
-if __name__ == '__main__':
-    detect_qvariant()
-