Removed get_latest_template_commit from git_commands

It is now part of the template repo

cookie_composer/git_commands.py

@@ -137,25 +137,6 @@ def branch_from_first_commit(repo: Repo, branch_name: str) -> None:
     repo.heads[branch_name].checkout()
 
 
-def get_latest_template_commit(template_path: str) -> Optional[str]:
-    """
-    Get the hexsha of the latest commit on the template path.
-
-    If the path is not a git repository, it returns ``None``.
-
-    Args:
-        template_path: The path to the potentially-cloned template
-
-    Returns:
-        The hexsha of the latest commit or ``None``
-    """
-    try:
-        repo = get_repo(template_path, search_parent_directories=True)
-        return repo.head.commit.hexsha
-    except GitError:
-        return None
-
-
 def apply_patch(repo: Repo, diff: str) -> None:
     """
     Apply a patch to a destination directory.

cookie_composer/layers.py

@@ -140,37 +140,6 @@ def set_rendered_name(cls, values: Dict[str, Any]) -> Dict[str, Any]:  # noqa: N
         values["rendered_name"] = dirs[0].name
         return values
 
-    def latest_template_sha(self) -> Optional[str]:
-        """
-        Return the latest SHA of this rendered layer's template.
-
-        If the template is not a git repository, it will always return ``None``.
-
-        Returns:
-            The latest hexsha of the template or ``None`` if the template isn't a git repo
-        """
-        from cookiecutter.config import get_user_config
-        from cookiecutter.repository import determine_repo_dir
-
-        from cookie_composer.git_commands import get_repo
-
-        user_config = get_user_config(config_file=None, default_config=False)
-        repo_dir, _ = determine_repo_dir(
-            template=self.layer.template,
-            abbreviations=user_config["abbreviations"],
-            clone_to_dir=user_config["cookiecutters_dir"],
-            checkout=self.layer.commit or self.layer.checkout,
-            no_input=self.layer.no_input,
-            password=self.layer.password,
-            directory=self.layer.directory,
-        )
-        try:
-            template_repo = get_repo(repo_dir, search_parent_directories=True)
-            return template_repo.head.object.hexsha
-        except GitError:
-            # It probably isn't a git repository
-            return None
-
 
 def get_write_strategy(origin: Path, destination: Path, rendered_layer: RenderedLayer) -> WriteStrategy:
     """