Cleanup code (#37)

* [apple,distrowatch,pypi] Remove unused imports

* [maven] use snake_case for variable names

* [eks,palo-alto-networks] Rename variables shadowing names from outer scopes

* [eks,palo-alto-networks] Remove unused variables

* [apple,haproxy,palo-alto-networks,rhel,ros,unrealircd] Rename variables shadowing built-in names

src/distrowatch.py

@@ -6,7 +6,6 @@ import json
 import frontmatter
 import urllib.request
 from bs4 import BeautifulSoup
-from html.parser import HTMLParser
 from liquid import Template
 
 # Same as used in Ruby (update.rb)