Remove setuptools_scm

[prisae]

To streamline with other packages we should use simply git describe to get the version number:

git describe --tags

The implementation is

version = subprocess.check_output(
    ['git', 'describe', '--tags'], stderr=subprocess.DEVNULL
).strip().decode('utf-8').split('-')
if len(version) > 1 and version[1]:
    version = version[0][1:] + '.dev' + version[1]
else:
    version = version[0][1:]

What it does:

• Remove the v, as Python wants a pure semantic number.
  E.g.: v0.0.4 => 0.0.4
• Adds the .dev-just for test releases to TestPyPI (does not accept hyphens as comes from git describe); cuts the hash.
  E.g. v0.0.4-5-gc821797 => 0.0.4.dev5

[kerrykey]

I just added this to the Julia code in 6f41b801d337e0860c97757ec22abe5713912df5

After spending the last 25+ years in Fortran and MATLAB, it's nice to be able to write one liners like this: version = split(read(`git describe --tags`,String),"-")[1][2:end]

[prisae]

Nice. I definitely didn't optimize that :-) I have to say that my str/regexp capabilities are way behind my numpy capabilities...

However, it takes only care of releases, not of the dev-part above (which is OK for what we discussed for the Julia build).