[development] Remove PHP filter by default

[Karoly Negyesi]

>> If you want to  enter PHP code, you save the snippet into an inc and  
>> upload it. For a  page, you do not need to even enable anything. That's  
>> the closest I can  get to TTW.
>
> I was going to ask how you execute a .inc without a PHP filter, but
> then realised you're planning some sort of user-defined include dir.

Exactly. See the patch. The modules are now around .5K. Can't be simpler :)

Regards

NK