Remove autotools build

Remove dist check on the CI, since it doesn't really
add anything in the Meson case (tarball is based
on files checked into git and srcdir != builddir).
7 jobs for master in 4 minutes and 33 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #2797246
build meson

00:00:31

passed #2797248
1809 windows docker
build msvc amd64

00:03:39

passed #2797249
1809 windows docker
build msvc x86

00:04:30

failed #2797247
1809 windows docker allowed to fail
build msys2

00:01:53

 
  Test
passed #2797252
doc-and-install meson

00:00:39

passed #2797250
test meson

00:01:01

passed #2797251
test valgrind meson

00:01:00

 
Name Stage Failure
failed
build msys2 Build
Git branch:   12-10-stable
GO version: go1.13.8
Built: 2020-04-22T19:51:52+0000
OS/Arch: windows/amd64
Uploading artifacts...
WARNING: build/meson-logs/: no matching files
WARNING: build/build.ninja: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 3221225477