chore: remove tar.gz from preserve_regex (googleapis#14555)

This PR removes the `tar.gz` from the list of files that we want to
preserve. This file is no longer needed since we're not using the bazel
workflow anymore.

Author: ohmayr

.generator/cli.py

@@ -140,7 +140,6 @@ def _add_new_library_preserve_regex(library_config: Dict, library_id: str) -> No
             "docs/CHANGELOG.md",
             "docs/README.rst",
             "samples/README.txt",
-            "tar.gz",
             "scripts/client-post-processing",
             "samples/snippets/README.rst",
             "tests/system",

scripts/configure_state_yaml/configure_state_yaml.py

@@ -85,7 +85,6 @@ def configure_state_yaml() -> None:
                         "docs/CHANGELOG.md",
                         "docs/README.rst",
                         "samples/README.txt",
-                        "tar.gz",
                         "scripts/client-post-processing",
                         "samples/snippets/README.rst",
                         "tests/system",