[test] lit.cfg: Disable swift_interpreter tests when testing remotely

Author: lorentey

test/lit.cfg

@@ -1953,6 +1953,9 @@ def configure_remote_run():
     config.target_swift_reflection_test = os.path.join(
         remote_tmp_dir, 'bin', swift_reflection_test_name)
     config.available_features.add('remote_run')
+    # Interpreter runs require local execution.
+    config.available_features.discard('swift_interpreter')
+
 
 config.substitutions.append(("%target-sdk-name", config.target_sdk_name))