Drop broken coding comment

When trying to print a backtrace for CancelledError, I got the following error: Traceback (most recent call last): File "/nix/store/bs03sg8b0gq2zr4v252hh9psp780qj5q-python3-3.8.5/lib/python3.8/tokenize.py", line 342, in find_cookie codec = lookup(encoding) LookupError: unknown encoding: utf8 Let's remove the coding comment altogether as only Python 3 is supported and that defaults to UTF-8: https://docs.python.org/3/reference/lexical_analysis.html#encoding-declarations

Author: jtojnar

asyncio_pool/__init__.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import sys
 
 from .results import getres

asyncio_pool/base_pool.py

@@ -1,4 +1,3 @@
-# coding: utf8
 '''Pool of asyncio coroutines with familiar interface, python3.5+ friendly'''
 
 import traceback

asyncio_pool/mx_asyncgen.py

@@ -1,4 +1,3 @@
-# coding: utf8
 '''Mixin for BaseAioPool with async generator features, python3.6+'''
 
 import asyncio as aio

asyncio_pool/mx_asynciter.py

@@ -1,4 +1,3 @@
-# coding: utf8
 '''Mixin for BaseAioPool with async generator _simulation_ for python 3.5'''
 
 import asyncio as aio

asyncio_pool/results.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 from functools import partial
 
 

examples/_usage.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import os
 import sys
 curr_dir = os.path.dirname(os.path.abspath(__file__))

examples/ls_remote.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import os
 import sys
 curr_dir = os.path.dirname(os.path.abspath(__file__))

setup.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import setuptools
 
 

tests/loadtest.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import os
 import sys
 curr_dir = os.path.dirname(os.path.abspath(__file__))

tests/test_base.py

@@ -1,5 +1,3 @@
-# coding: utf8
-
 import pytest
 import asyncio as aio
 from asyncio_pool import AioPool