umu_test: update tests

- Remove some assertions for the state of the compatibilitytools.d directory. Once an exception occurs, all files will automatically be cleaned up as the temporary directory is created as a context manager.

umu/umu_test.py

@@ -639,21 +639,7 @@ def test_latest_interrupt(self):
             self.assertFalse(
                 self.env["PROTONPATH"], "Expected PROTONPATH to be empty"
             )
-            self.assertFalse(result, "Expected None when a ValueError occurs")
-
-            # Verify the state of the compat dir/cache
-            self.assertFalse(
-                self.test_compat.joinpath(
-                    self.test_archive.name[
-                        : self.test_archive.name.find(".tar.gz")
-                    ]
-                ).exists(),
-                "Expected Proton dir in compat to be cleaned",
-            )
-            self.assertFalse(
-                self.test_cache.joinpath(self.test_archive.name).exists(),
-                "Expected Proton dir in compat to be cleaned",
-            )
+            self.assertFalse(result, "Expected None on KeyboardInterrupt")
 
     def test_latest_val_err(self):
         """Test _get_latest when something goes wrong when downloading Proton.
@@ -689,12 +675,6 @@ def test_latest_val_err(self):
             )
             self.assertFalse(result, "Expected None when a ValueError occurs")
 
-            # Ensure we clean up suspected files
-            self.assertFalse(
-                self.test_archive.is_file(),
-                "Expected test file in cache to be deleted",
-            )
-
     def test_latest_offline(self):
         """Test _get_latest when the user doesn't have internet."""
         result = None