Remove unused variables

Author: chennes

AddonManagerTest/app/test_addon_catalog_cache_creator.py

@@ -92,7 +92,6 @@ def test_find_file_with_non_existent_file(self):
     def test_generate_cache_entry_from_package_xml_bad_metadata(self):
         """Given an invalid metadata file, no cache entry is generated, but also no exception is
         raised."""
-        ace = AddonCatalog.AddonCatalogEntry({"git_ref": "main"})
         file_path = os.path.abspath(
             os.path.join("home", "cache", "TestMod", "1-main", "package.xml")
         )
@@ -106,7 +105,6 @@ def test_generate_cache_entry_from_package_xml_bad_metadata(self):
     def test_generate_cache_entry_from_package_xml(self, _):
         """Given a good metadata file, its contents are embedded into the cache."""
 
-        ace = AddonCatalog.AddonCatalogEntry({"git_ref": "main"})
         file_path = os.path.abspath(
             os.path.join("home", "cache", "TestMod", "1-main", "package.xml")
         )
@@ -124,7 +122,6 @@ def test_generate_cache_entry_from_package_xml_with_icon(self, mock_icon, _):
         """Given a metadata file that contains an icon, that icon's contents are
         base64-encoded and embedded in the cache."""
 
-        ace = AddonCatalog.AddonCatalogEntry({"git_ref": "main"})
         file_path = os.path.abspath(
             os.path.join("home", "cache", "TestMod", "1-main", "package.xml")
         )