Remove filename inherited from en

pl/json.md

@@ -6,7 +6,6 @@ contributors:
   - ["Michael Neth", "https://github.com/infernocloud"]
 translators:
   - ["Michał Mitrosz", "https://github.com/Voltinus"]
-filename: learnjson-pl.json
 ---
 
 JSON to bardzo prosty format wymiany danych. Jak jest napisane na [json.org](http://json.org), jest łatwy do pisania i czytania dla ludzi i do parsowania i generowania dla maszyn.

pl/pythonlegacy.md

@@ -1,5 +1,4 @@
 ---
-filename: learnpythonlegacy-pl.py
 contributors:
     - ["Louie Dinh", "http://ldinh.ca"]
     - ["Amin Bandali", "http://aminbandali.com"]

pl/ruby.md

@@ -1,5 +1,4 @@
 ---
-filename: learnruby-pl.rb
 contributors:
   - ["David Underwood", "http://theflyingdeveloper.com"]
   - ["Joel Walden", "http://joelwalden.net"]

pl/vim.md

@@ -3,7 +3,6 @@ contributors:
     - ["RadhikaG", "https://github.com/RadhikaG"]
 translators:
     - ["Adam Bobowski", "https://github.com/Bobowski"]
-filename: LearnVim-pl.txt
 ---
 
 

pl/xml.md

@@ -1,5 +1,4 @@
 ---
-filename: learnxml-pl.xml
 contributors:
   - ["João Farias", "https://github.com/JoaoGFarias"]
 translators: