diff -Naur Electrum-3.1.1.orig/setup.py Electrum-3.1.1/setup.py
--- Electrum-3.1.1.orig/setup.py	2018-03-12 13:25:11.000000000 -0400
+++ Electrum-3.1.1/setup.py	2018-03-17 17:49:54.481961514 -0400
@@ -86,8 +86,3 @@
     url="https://electrum.org",
     long_description="""Lightweight Bitcoin Wallet"""
 )
-
-# Optional modules (not required to run Electrum)
-import pip
-opt_modules = requirements_hw + ['pycryptodomex']
-[ pip.main(['install', m]) for m in opt_modules ]