Remove redundant experimental version checking code.

Author: domdfcoding

repo_helper/configuration/python_versions_.py

@@ -129,7 +129,7 @@ class python_versions(ConfigVar):  # noqa
 
 	@staticmethod
 	def _is_experimental(version: str):
-		if version in {"pypy37", "pypy38", "pypy39"}:
+		if version in {"pypy37", "pypy38", "pypy39", "pypy3.7", "pypy3.8", "pypy3.9"}:
 			return True
 
 		try:

repo_helper/files/ci_cd.py

@@ -225,16 +225,6 @@ def get_gh_actions_matrix(self) -> Dict[str, Tuple[str, bool]]:
 
 		return output
 
-	@staticmethod
-	def _is_experimental(version: str):
-		if version in {"pypy-3.7", "pypy-3.8", "pypy-3.9"}:
-			return True
-
-		try:
-			return Version(version).is_prerelease
-		except InvalidVersion:
-			return False
-
 	def make_windows(self) -> PathPlus:
 		"""
 		Create, update or remove the Windows action, as appropriate.
@@ -253,7 +243,6 @@ def make_windows(self) -> PathPlus:
 							dependency_lines=self.get_windows_ci_requirements(),
 							gh_actions_versions=self.get_gh_actions_matrix(),
 							code_file_filter=self._code_file_filter,
-							is_experimental=self._is_experimental
 							)
 					)
 		elif ci_file.is_file():
@@ -279,7 +268,6 @@ def make_macos(self) -> PathPlus:
 							dependency_lines=self.get_macos_ci_requirements(),
 							gh_actions_versions=self.get_gh_actions_matrix(),
 							code_file_filter=self._code_file_filter,
-							is_experimental=self._is_experimental
 							)
 					)
 		elif ci_file.is_file():
@@ -314,7 +302,6 @@ def make_linux(self) -> PathPlus:
 							gh_actions_versions=self.get_gh_actions_matrix(),
 							code_file_filter=self._code_file_filter,
 							run_on_tags="    tags:\n      - '*'",
-							is_experimental=self._is_experimental,
 							conda_pip_dependencies=conda_pip_dependencies,
 							)
 					)