Uninstall Ruby / PHP in existing Mac OS

Hi Guys, posting this after a long period as was little busy ;-). Anyways lets get into the subject.

Whenever OSX 10.x version installed, by default PHP / Ruby will also be installed. This is good but sometimes we don't want the particular version installed so to remove this we need to do the following steps.

For Ruby

sudo mv /System/Library/Frameworks/Ruby.framework/Versions/1.8 /System/Library/Frameworks/Ruby.framework/Versions/1.8.dead

sudo mv /usr/bin/ruby /usr/bin/old_ruby

sudo mv /usr/bin/gem /usr/bin/old_gem

For PHP

sudo mv /usr/bin/php /usr/bin/old_php

Uninstall SCPlugin for MacOS

I installed the SCPlugin and Subversion Packages & thought would play wonders, but unfortunately it couldn't be useful much for me. I left it unattended but suddenly I got some strange error like this..

This client is too old to work with working copy '/Users//Public'; please get a newer Subversion client
The tool /usr/local/bin/change-svn-wc-format.py
may be used to convert this working copy to match this SCPlugin (see 'About'), but you will loose any features of the newer Subversion you may be using

I tried googling but unfortunately I couldn't find any solution and after some couple of weeks I found some how to do uninstall it.

Please remove /Library/Contextual Menu Items/SCFinderPlugin.plugin
Remove /Library/Receipts/SCPlugin.pkg -> version might be also appended sometimes
Remove /Library/Receipts/Subversion.pkg.

Feel free to ping for any help.