Revert "chsh: added list chells command" (#2242)

pages/common/chsh.md

@@ -2,10 +2,6 @@
 
 > Change user's login shell.
 
-- List all installed shells:
-
-`chsh -l`
-
 - Change shell:
 
 `chsh -s {{path/to/shell_binary}} {{username}}`