1 files changed, 0 insertions, 11 deletions
diff --git a/buildscripts/idl/lib.py b/buildscripts/idl/lib.py
index 5484f98e9d3..c4ae1c08fea 100644
--- a/buildscripts/idl/lib.py
+++ b/buildscripts/idl/lib.py
@@ -56,14 +56,3 @@ def parse_idl(idl_path: str, import_directories: List[str]) -> syntax.IDLParsedS
         raise ValueError(f"Cannot parse {idl_path}")
 
     return parsed_doc
-
-
-def is_third_party_idl(idl_path: str) -> bool:
-    """Check if an IDL file is under a third party directory."""
-    third_party_idl_subpaths = [os.path.join("third_party", "mozjs"), "win32com"]
-
-    for file_name in third_party_idl_subpaths:
-        if file_name in idl_path:
-            return True
-
-    return False