Remove dbt get_manifest_schema_version patch

It has been fixed and backported to 1.6.2

Signed-off-by: Wei-Chun, Chang <[email protected]>

Author: wcchang1115

piperider_cli/dbt/list_task.py

@@ -114,12 +114,7 @@ def patched_get_manifest_schema_version(dct: dict) -> int:
             return int(match.group(1))
         raise ValueError("Manifest doesn't have schema version")
 
-    import dbt.contracts.graph.manifest
-    origin_function = dbt.contracts.graph.manifest.get_manifest_schema_version
-    dbt.contracts.graph.manifest.get_manifest_schema_version = patched_get_manifest_schema_version
-
     result = WritableManifest.upgrade_schema_version(data)
-    dbt.contracts.graph.manifest.get_manifest_schema_version = origin_function
     return result