Remove wsgiref dependency

wsgiref is already a part of Python library since Python 2.5,
and the standalone package does not support Python 3.
Removing wsgiref package as a requirement allows installation
of the loklak package on Python 3.

Author: laymonage

requirements.txt

@@ -1,5 +1,4 @@
 asyncoro==3.5
 requests==2.8.1
-wsgiref==0.1.2
 xmljson==0.1.6
 

setup.py

@@ -27,7 +27,6 @@
       install_requires=[
         "asyncoro==3.5",
         "requests==2.8.1",
-        "wsgiref==0.1.2",
         "xmljson==0.1.6"
       ],
       zip_safe=False,