remove lowercase redirect and update comments

Author: TimidRobot

config/language-redirects

@@ -3,22 +3,14 @@
 # This file was generated by the publish command.
 # https://github.com/creativecommons/cc-legal-tools-app
 #
-# It should be included from within an Apache2 httpd site config
-#
-# https://httpd.apache.org/docs/2.4/mod/mod_alias.html
-# https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html
-
-###############################################################################
-# Step 1: Redirect mixed/uppercase to lowercase
-#
-# Must be set within virtual host context:
-RewriteMap lowercase int:tolower
-RewriteCond %{REQUEST_URI} ^/(licenses|publicdomain)
-RewriteCond $1 [A-Z]
-RewriteRule ^/?(.*)$ /${lowercase:$1} [R=301,L]
+# See related Apache2 httpd documentation:
+# - https://httpd.apache.org/docs/2.4/mod/mod_alias.html
+# - https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html
 
 ###############################################################################
-# Step 2: Redirect alternate language codes to supported Django language codes
+# Step 1: Langauge redirects
+#       - Redirect alternate language codes to supported Django language codes
+#       - Redirect legacy bug URLs to valid URLs
 
 RedirectMatch  301  "^/publicdomain/zero/1[.]0/legalcode[.]zh[@_-]tw(?:[.]html)?$"            "/publicdomain/zero/1.0/legalcode.zh-hant"
 RedirectMatch  301  "^/publicdomain/zero/1[.]0/legalcode[.]zh[@_-]cn(?:[.]html)?$"            "/publicdomain/zero/1.0/legalcode.zh-hans"