Remove warnings

With the new `.pth` file, these warnings are no longer necessary.

setuptools/distutils_patch.py

@@ -12,26 +12,10 @@ import importlib
 import warnings
 
 
-is_pypy = '__pypy__' in sys.builtin_module_names
-
-
-def warn_distutils_present():
-    if 'distutils' not in sys.modules:
-        return
-    if is_pypy and sys.version_info < (3, 7):
-        # PyPy for 3.6 unconditionally imports distutils, so bypass the warning
-        # https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250
-        return
-    warnings.warn(
-        "Distutils was imported before Setuptools. This usage is discouraged "
-        "and may exhibit undesirable behaviors or errors. Please use "
-        "Setuptools' objects directly or at least import Setuptools first.")
-
-
 def clear_distutils():
     if 'distutils' not in sys.modules:
         return
-    warnings.warn("Setuptools is replacing distutils.")
+
     mods = [name for name in sys.modules if re.match(r'distutils\b', name)]
     for name in mods:
         del sys.modules[name]
@@ -56,6 +40,5 @@ def ensure_local_distutils():
     assert '_distutils' in core.__file__, core.__file__
 
 
-warn_distutils_present()
 if enabled():
     ensure_local_distutils()