Makes no sense anymore to keep it there since it was the only git submdule.

Incidentally, this means that the JSONlab submodule is no longer needed, so it
is removed in the present commit.

Closes: #1907

Bug introduced in ed7fe89b.

Ref. !2142

This code was never integrated in Dynare. Also, the authors would like to
release a new version soon, and they prefer that we remove this old version
from our repositories.

Closes: #568

The main advantage is that, when someone does a recursive clone through SSH,
all the submodules will be cloned through SSH.

Relative paths are also useful when submodules are in private repositories: in
that case, the CI runner will have access to the private submodule.

It is important to enforce the group name in the relative URL, so that clones
in personal namespaces still work as expected.

See: https://docs.gitlab.com/ee/ci/git_submodules.html

Sébastien Villemot authored 6 years ago and Stéphane Adjemian committed 6 years ago

(cherry picked from commit 3263fdc9)

(cherry picked from commit 1f82fd8c)

(cherry picked from commit bcdca088)

Also changed branch to master.

Also changed branch to master.

(cherry picked from commit 2a60e57d)

(cherry picked from commit 9e40cb0e)

Submodules dates and dseries now target the private repositories available at

https://gitlab.com/McModelTeam

We use the new oop syntax with the matla-fame-io submodule in dseries.

Changed remote for dates submodule (use https protocol instead of ssh, dynbot is not a known user for GitHub).

The submodule dates is in matlab/modules/ subfolder.

For submodules use https protocol (dynbot is not recognized by github).