Remove unnecessary encoding cookie from Python source files

In Python 3, the default encoding of source files is utf-8. The encoding
cookie is now unnecessary and redundant so remove it. For more details,
see the docs:

https://docs.python.org/3/howto/unicode.html#the-string-type

> The default encoding for Python source code is UTF-8, so you can
> simply include a Unicode character in a string literal ...

Includes a fix for the flake8 header checks to stop expecting an
encoding cookie.

1 files changed, 0 insertions, 2 deletions

diff --git a/doc/conf.py b/doc/conf.py
index 2b0ebfb82..0be4672be 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-#
 # Sphinx documentation build configuration file
 
 import re