revert forced align

Author: Atticus1806

common/setups/rasr/gmm_system.py

@@ -1408,7 +1408,12 @@ def run(self, steps: Union[List[str], RasrSteps]):
 
             # ---------- Forced Alignment ----------
             if step_name.startswith("forced_align"):
-                self.run_forced_align_step(step_args)
+                corpus_keys = step_args.pop("corpus_keys", self.train_corpora)
+                for corpus in corpus_keys:
+                    self.forced_align(
+                        feature_scorer_corpus_key=corpus,
+                        **step_args,
+                    )
 
             # ---------- Only Recognition ----------
             if step_name.startswith("recog"):