diff --git a/Tests/test_file_icns.py b/Tests/test_file_icns.py
index 8ff59161f..b9b818506 100644
--- a/Tests/test_file_icns.py
+++ b/Tests/test_file_icns.py
@@ -93,21 +93,11 @@ def test_sizes() -> None:
     with Image.open(TEST_FILE) as im:
         assert isinstance(im, IcnsImagePlugin.IcnsImageFile)
         for w, h, r in im.info["sizes"]:
-            wr = w * r
-            hr = h * r
-            with pytest.warns(
-                DeprecationWarning, match=r"Setting size to \(width, height, scale\)"
-            ):
-                im.size = (w, h, r)
-            im.load()
-            assert im.mode == "RGBA"
-            assert im.size == (wr, hr)
-
             # Test using load() with scale
             im.size = (w, h)
             im.load(scale=r)
             assert im.mode == "RGBA"
-            assert im.size == (wr, hr)
+            assert im.size == (w * r, h * r)
 
         # Check that we cannot load an incorrect size
         with pytest.raises(ValueError):
diff --git a/docs/deprecations.rst b/docs/deprecations.rst
index 772e88147..e2c74f2a2 100644
--- a/docs/deprecations.rst
+++ b/docs/deprecations.rst
@@ -32,14 +32,6 @@ vulnerability introduced in FreeType 2.6 (:cve:`2020-15999`).
 
 .. _2.10.4: https://sourceforge.net/projects/freetype/files/freetype2/2.10.4/
 
-ICNS (width, height, scale) sizes
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-.. deprecated:: 11.0.0
-
-Setting an ICNS image size to ``(width, height, scale)`` before loading has been
-deprecated. Instead, ``load(scale)`` can be used.
-
 ExifTags.IFD.Makernote
 ^^^^^^^^^^^^^^^^^^^^^^
 
@@ -189,6 +181,14 @@ ImageDraw.getdraw hints parameter
 
 The ``hints`` parameter in :py:meth:`~PIL.ImageDraw.getdraw()` has been removed.
 
+ICNS (width, height, scale) sizes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+Setting an ICNS image size to ``(width, height, scale)`` before loading has been
+removed. Instead, ``load(scale)`` can be used.
+
 Image isImageType()
 ^^^^^^^^^^^^^^^^^^^
 
diff --git a/src/PIL/IcnsImagePlugin.py b/src/PIL/IcnsImagePlugin.py
index 5a88429e5..197ea7a2b 100644
--- a/src/PIL/IcnsImagePlugin.py
+++ b/src/PIL/IcnsImagePlugin.py
@@ -25,7 +25,6 @@ import sys
 from typing import IO
 
 from . import Image, ImageFile, PngImagePlugin, features
-from ._deprecate import deprecate
 
 enable_jpeg2k = features.check_codec("jpg_2000")
 if enable_jpeg2k:
@@ -275,34 +274,25 @@ class IcnsImageFile(ImageFile.ImageFile):
             self.best_size[1] * self.best_size[2],
         )
 
-    @property  # type: ignore[override]
-    def size(self) -> tuple[int, int] | tuple[int, int, int]:
+    @property
+    def size(self) -> tuple[int, int]:
         return self._size
 
     @size.setter
-    def size(self, value: tuple[int, int] | tuple[int, int, int]) -> None:
-        if len(value) == 3:
-            deprecate("Setting size to (width, height, scale)", 12, "load(scale)")
-            if value in self.info["sizes"]:
-                self._size = value  # type: ignore[assignment]
+    def size(self, value: tuple[int, int]) -> None:
+        # Check that a matching size exists,
+        # or that there is a scale that would create a size that matches
+        for size in self.info["sizes"]:
+            simple_size = size[0] * size[2], size[1] * size[2]
+            scale = simple_size[0] // value[0]
+            if simple_size[1] / value[1] == scale:
+                self._size = value
                 return
-        else:
-            # Check that a matching size exists,
-            # or that there is a scale that would create a size that matches
-            for size in self.info["sizes"]:
-                simple_size = size[0] * size[2], size[1] * size[2]
-                scale = simple_size[0] // value[0]
-                if simple_size[1] / value[1] == scale:
-                    self._size = value
-                    return
         msg = "This is not one of the allowed sizes of this image"
         raise ValueError(msg)
 
     def load(self, scale: int | None = None) -> Image.core.PixelAccess | None:
-        if scale is not None or len(self.size) == 3:
-            if scale is None and len(self.size) == 3:
-                scale = self.size[2]
-            assert scale is not None
+        if scale is not None:
             width, height = self.size[:2]
             self.size = width * scale, height * scale
             self.best_size = width, height, scale