diff --git a/src/ocrmypdf/builtin_plugins/concurrency.py b/src/ocrmypdf/builtin_plugins/concurrency.py
index d9a072c9..25c6879c 100644
--- a/src/ocrmypdf/builtin_plugins/concurrency.py
+++ b/src/ocrmypdf/builtin_plugins/concurrency.py
@@ -30,8 +30,6 @@ Queue = Union[multiprocessing.Queue, queue.Queue]
 UserInit = Callable[[], None]
 WorkerInit = Callable[[Queue, UserInit, int], None]
 
-RichTqdmProgressAdapter = RichProgressBar  # Deprecated shim; remove in OCRmyPDF 16
-
 
 def log_listener(q: Queue):
     """Listen to the worker processes and forward the messages to logging.
diff --git a/src/ocrmypdf/optimize.py b/src/ocrmypdf/optimize.py
index 004b42d7..f594c244 100644
--- a/src/ocrmypdf/optimize.py
+++ b/src/ocrmypdf/optimize.py
@@ -71,15 +71,9 @@ def jpg_name(root: Path, xref: Xref) -> Path:
 
 
 def extract_image_filter(
-    image: Stream, xref: Xref, *args
+    image: Stream, xref: Xref
 ) -> tuple[PdfImage, tuple[Name, Object]] | None:
     """Determine if an image is extractable."""
-    if isinstance(image, Pdf):
-        # Support deprecated old function signature
-        # TODO Remove for v16 and drop *args from current function signature
-        image, xref = args[0], args[1]
-        warn("extract_image_filter: pdf, root parameters ignored", DeprecationWarning)
-
     if image.Subtype != Name.Image:
         return None
     if image.Length < 100: