1. Create a file named svndelete.reg
2. Copy and paste the following to the file using notepad

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\DeleteSVN]
@=”Delete SVN Folders”
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\DeleteSVN\command]
@=”cmd.exe /c \”TITLE Removing SVN Folders in %1 && COLOR 9A && FOR /r \”%1\” %%f IN (.svn) DO RD /s /q \”%%f\” \”"

3. Double-click on the svndelete.reg to add the registry
4. Now you can right click on a folder and select Delete SVN folders

Delete_SVN

Hope that helps! :)

You can do the following for Linux:

find -name .svn -exec rm -rf {} \;