Modernize setuptools usage and setuptools_scm

.git_archival.txt

@@ -1 +1,4 @@
+node: $Format:%H$
+node-date: $Format:%cI$
+describe-name: $Format:%(describe:tags=true)$
 ref-names: $Format:%D$

pyproject.toml

@@ -1,14 +1,12 @@
 [build-system]
 requires = [
-  "setuptools >= 30.3.0",
+  "setuptools >= 52",
-  "wheel",
+  "setuptools_scm[toml] >= 7.0.3",
-  "setuptools_scm[toml] >= 3.4",
+  "wheel"
-  "setuptools_scm_git_archive"
 ]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
-version_scheme = "post-release"
 
 [tool.black]
 line-length = 88

setup.py

@@ -8,11 +8,4 @@
 
 from setuptools import setup
 
-# Minimal setup to support older setuptools/setuptools_scm
+setup()
-setup(
-    setup_requires=[  # can be removed whenever we can drop pip 9 support
-        'setuptools_scm',  # so that version will work
-        'setuptools_scm_git_archive',  # enable version from github tarballs
-    ],
-    use_scm_version={'version_scheme': 'post-release'},
-)