Get rid of code in drop-down menu of "Add syntax higlight" button.

Pre-conditions:
You should be a registered user. You should be Logged In.
Steps:
1) Go to forum and choose some branch
2) Click "New Topic" to open "New Topic" screen
3) Here is the "Add syntax highlight" button
It does not matter what programming language we choose in the drop-down list of button "Add syntax higlight". The syntax will be displayed correct depending on what language it is written.