Update documentation donation information.

LUFA/DoxygenPages/Donating.txt

@@ -17,9 +17,6 @@
  *  \ref Page_LicenseInfo for more details (<b>Note: Please do NOT pay this in advance through the donation link below -
  *  contact author for payment details.</b>).
  *
- *  \htmlonly
- *    \image html "http://www.pledgie.com/campaigns/6927.png"
- *  \endhtmlonly
- *  <a href="http://www.lufa-lib.org/donate">Donate to this project via PayPal</a> - Thanks in Advance!
+ *  <a href="http://www.fourwalledcubicle.com">Donate to this project (via PayPal)</a> - Thanks in Advance!
  */