Merge pull request ruby#3393 from timfanda35/follow-up-remove-obsolete-links

Follow up "Remove obsolete editor links" (zh_tw)

Author: JuanitoFatas

zh_tw/documentation/index.md

@@ -88,8 +88,6 @@ lang: zh_tw
 
 * Windows 作業系統：
   * [Notepad++][29]
-  * [E-TextEditor][30]
-  * [Ruby In Steel][31]
 
 * macOS 作業系統：
   * [TextMate][32]
@@ -129,8 +127,6 @@ lang: zh_tw
 [27]: http://www.jetbrains.com/ruby/
 [28]: http://www.scintilla.org/SciTE.html
 [29]: http://notepad-plus-plus.org/
-[30]: http://www.e-texteditor.com/
-[31]: http://www.sapphiresteel.com/
 [32]: http://macromates.com/
 [33]: https://www.barebones.com/products/bbedit/
 [34]: http://ruby-doc.org