Do not state that patched font does not work for rxvt-unicode
Do not state that patched font does not work for rxvt-unicode

Fixes #1455
QuLogic/powerline,QuLogic/powerline,S0lll0s/powerline,kenrachynski/powerline,kenrachynski/powerline,EricSB/powerline,bezhermoso/powerline,blindFS/powerline,prvnkumar/powerline,areteix/powerline,EricSB/powerline,QuLogic/powerline,prvnkumar/powerline,blindFS/powerline,S0lll0s/powerline,areteix/powerline,bezhermoso/powerline,blindFS/powerline,kenrachynski/powerline,prvnkumar/powerline,areteix/powerline,S0lll0s/powerline,bezhermoso/powerline,EricSB/powerline