Delete Client-Side Components/Catalog Client Script/Special Characters directory (#2065)

Removed this as it is a copy of /code-snippets/tree/f1f5267a806b39e8c63703f8b4274a850c11448f/Specialized%20Areas/Regular%20Expressions/Check%20for%20special%20characters

It is a regex not in the regex folder.

Author: WillemZeiler