Remove old method

dbt_dry_run/literals.py

@@ -1,5 +1,4 @@
-import re
-from typing import Callable, Dict, List, Optional, cast
+from typing import Callable, Dict, List, Optional
 from uuid import uuid4
 
 import sqlglot
@@ -85,17 +84,6 @@ def get_sql_literal_from_table(table: Table) -> str:
     return select_literal
 
 
-def replace_upstream_sql_old(node_sql: str, node: Node, table: Table) -> str:
-    upstream_table_ref = node.to_table_ref_literal()
-    regex = re.compile(
-        rf"((?:from|join)(?:\s--.*)?[\r\n\s]*)({upstream_table_ref})",
-        flags=re.IGNORECASE | re.MULTILINE,
-    )
-    select_literal = get_sql_literal_from_table(table)
-    new_node_sql = regex.sub(r"\1" + select_literal, node_sql)
-    return new_node_sql
-
-
 def convert_trees_to_sql(trees: List[sqlglot.Expression]) -> str:
     return ";\n".join(tree.sql(sqlglot.dialects.BigQuery) for tree in trees)