Really, it's a total waste to download this. To do exactly the same thing without all the unnecessary crap, copy paste this line at your shell prompt in Terminal. That is, open the application Applications -> Utilities -> Terminal, and paste the line, and type return.
rm -r ~/.dvdcss
You can even make an alias out of it.
For tcsh, paste this line, once, and you'll have the same function in a command called "rdc" from now on:
echo "alias rdc 'rm -r ~/.dvdcss'" >> ~/.tcshrc
You could use .cshrc instead of .tcshrc if you prefer.
For bash, use this line instead:
echo "alias rdc='rm -r ~/.dvdcss'" >> ~/.bashrc
Or, you can make a "shell command executable" (which you can double-click like a normal application) out of it:
In bash:
echo '#!/bin/sh' > rdc ; echo 'rm -r ~/.dvdcss' >> rdc ; chmod 755 rdc ; open .
Or in tcsh:
echo '#\!/bin/csh'>rdc ; echo 'rm -r ~/.dvdcss' >> rdc ; chmod 755 rdc ; open .
Either of those lines will make you a tiny file that you can double-click to delete the hidden directory .dvdcss in your home folder.
In any case, you can change the -r after rm into -ir to make the rm (remove) command ask before each item, if you want.