Remove workaround

Author: abravalheri

.github/workflows/main.yml

@@ -100,7 +100,7 @@ jobs:
         run: |
           rm -rf dist
           # workaround for pypa/setuptools#4333
-          pipx run --pip-args 'pyproject-hooks<1.1' build
+          pipx run --pip-args 'pyproject-hooks!=1.1' build
           echo "PRE_BUILT_SETUPTOOLS_SDIST=$(ls dist/*.tar.gz)" >> $GITHUB_ENV
           echo "PRE_BUILT_SETUPTOOLS_WHEEL=$(ls dist/*.whl)" >> $GITHUB_ENV
           rm -rf setuptools.egg-info  # Avoid interfering with the other tests

pyproject.toml

@@ -57,7 +57,7 @@ test = [
 	"pytest-subprocess",
 
 	# workaround for pypa/pyproject-hooks#206
-	"pyproject-hooks<1.1",  # TODO: fix problem with egg-info, see #4670
+	"pyproject-hooks!=1.1",
 
 	"jaraco.test",
 ]