Revert "testing setuptools-scm"

This reverts commit 53719c7a

pyproject.toml

 [build-system]
 requires = [
-    "numpy", "setuptools>=45", "wheel", "setuptools_scm>=6.2"
+    "numpy", "setuptools"
 ]
 build-backend = "setuptools.build_meta"
-
-[tool.setuptools_scm]

setup.cfg

 [metadata]
 name = icartt
-
+version = 1.9.1
 author = Christoph Knote
 author_email = christoph.knote@med.uni-augsburg.de
 description = ICARTT format reader and writer