diff -Naur Electrum-3.1.2.orig/setup.py Electrum-3.1.2/setup.py
--- Electrum-3.1.2.orig/setup.py	2018-03-31 15:08:48.919694817 -0400
+++ Electrum-3.1.2/setup.py	2018-03-31 15:09:28.738594744 -0400
@@ -37,9 +37,6 @@
     name="Electrum",
     version=version.ELECTRUM_VERSION,
     install_requires=requirements,
-    extras_require={
-        'full': requirements_hw + ['pycryptodomex'],
-    },
     packages=[
         'electrum',
         'electrum_gui',
