Do not install guile

This is not a real dependency.
7 jobs for master in 107 minutes and 4 seconds (queued for 9 seconds)
latest
Status Job ID Name Coverage
  Dist
passed #1088301
dist

01:17:18

 
  Check
passed #1088307
check

00:06:39

passed #1088313
deb

00:21:06

passed #1088316
generate

00:23:52

passed #1088310
mingw

00:26:56

 
  Manual
passed #1088320
pages

00:02:49

 
  Deploy
passed pages:deploy

00:00:01