cleanup setup.py

setup.py

@@ -44,19 +44,7 @@ def get_petsc_variables():
     return {k.strip(): v.strip() for k, v in splitlines}
 
 
-# ~ def _requirements(deps, pkg):
-    # ~ """Recursively obtain the dependencies of a package using pkgconfig
-    # ~ """
-    # ~ deps = pkgconfig.requires(pkg)
-    # ~ if len(deps[0]):
-        # ~ for p in deps:
-            # ~ deps.extend(_requirements(deps, p))
-        # ~ return deps
-    # ~ else:
-        # ~ return []
-
-
-# JBTODO: This is deprecated behaviour, what to do?:
+# TODO: This is deprecated behaviour, what to do?:
 if "clean" in sys.argv[1:]:
     # Forcibly remove the results of Cython.
     for dirname, dirs, files in os.walk("firedrake"):
@@ -67,11 +55,6 @@ def get_petsc_variables():
                 os.remove(os.path.join(dirname, f))
 
 
-# We need to link to 6 different external packages, and we do that in 5 different
-# ways! The details details of how to compile extensions can be found at:
-# https://setuptools.pypa.io/en/latest/userguide/ext_modules.html#compiler-and-linker-options
-
-
 @dataclass
 class ExternalDependency:
     ''' This dataclass stores the relevant information for the compiler as fields