New: remove all stuff that was here for sentimental reasons (old lurette toplevel)

nb:there is now no more dependency on camlp4!
2 jobs for 2.70.0 in 8 minutes and 39 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #92327
build

00:04:35

 
  Test
passed #92328
test_opam_test

00:04:04