Remove obsolete gitignore

[why]
With commit
  1b630a9 CI: Use latest Nerd Font release font-patcher

we switch to the Nerd Font Font-Patcher.zip release that contains the
patcher script and all needed source fonts. We do not download them
anymore on our own.

Signed-off-by: Fini Jastrow <[email protected]>

Author: Finii

.gitignore

@@ -3,5 +3,4 @@ src/
 otf/
 ttf/
 woff2/
-font-patcher*
 __pycache__/*