Uninstall CS 5.5 or CS5

From https://helpx.adobe.com/creative-suite/kb/uninstall-creative-suite-cs5-cs5.html

1. Navigate to /Applications/Utilities/Adobe Installers/.

2. Double-click a Creative Suite 5 or 5.5 edition or product uninstaller alias.

3. Select the items that you want to remove.

1. Choose to remove preferences or deactivate your product.
   Note: Connect to the Internet to deactivate.
2. Click Uninstall.