[SVN] Regular Expressions Grammar

[Michael Sheets]

Was just making sure no one has an objection to removing the Regular  
Expressions grammar that is in the Regular Expressions bundle. There  
is a much better version of it in the Textmate bundle so I didn't see  
any downside but wanted to make sure there wasn't a reason to keep it  
around.

Would say move the newer one over to the RegExp bundle, but it's not  
a default bundle and is included from other grammars so it needs to  
be available and not filtered out.