diff --git a/Libraries/LibCore/Object.h b/Libraries/LibCore/Object.h
index 7247ab97bd..9e7ff40265 100644
--- a/Libraries/LibCore/Object.h
+++ b/Libraries/LibCore/Object.h
@@ -300,12 +300,6 @@ const LogStream& operator<<(const LogStream&, const Object&);
             return false;                                                    \
         })
 
-#define REGISTER_SIZE_POLICY_PROPERTY(property_name, getter, setter) \
-    REGISTER_ENUM_PROPERTY(                                          \
-        property_name, getter, setter, GUI::SizePolicy,              \
-        { GUI::SizePolicy::Fill, "Fill" },                           \
-        { GUI::SizePolicy::Fixed, "Fixed" })
-
 #define REGISTER_TEXT_ALIGNMENT_PROPERTY(property_name, getter, setter) \
     REGISTER_ENUM_PROPERTY(                                             \
         property_name, getter, setter, Gfx::TextAlignment,              \
diff --git a/Libraries/LibGUI/Widget.h b/Libraries/LibGUI/Widget.h
index 9c423a48af..3a5b213030 100644
--- a/Libraries/LibGUI/Widget.h
+++ b/Libraries/LibGUI/Widget.h
@@ -45,21 +45,6 @@
 
 namespace GUI {
 
-enum class SizePolicy {
-    Fixed,
-    Fill
-};
-inline const char* to_string(SizePolicy policy)
-{
-    switch (policy) {
-    case SizePolicy::Fixed:
-        return "SizePolicy::Fixed";
-    case SizePolicy::Fill:
-        return "SizePolicy::Fill";
-    }
-    return "SizePolicy::(Invalid)";
-}
-
 enum class HorizontalDirection {
     Left,
     Right