LibGUI: Delete old now-unused `Widget::load_from_gml()`

Userland/Libraries/LibGUI/Widget.cpp

@@ -1159,16 +1159,6 @@ ErrorOr<void> Widget::try_load_from_gml(StringView gml_string, UnregisteredChild
     return load_from_gml_ast(value, unregistered_child_handler);
 }
 
-bool Widget::load_from_gml(StringView gml_string)
-{
-    return !try_load_from_gml(gml_string).is_error();
-}
-
-bool Widget::load_from_gml(StringView gml_string, UnregisteredChildHandler unregistered_child_handler)
-{
-    return !try_load_from_gml(gml_string, unregistered_child_handler).is_error();
-}
-
 ErrorOr<void> Widget::load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, UnregisteredChildHandler unregistered_child_handler)
 {
     if (is<GUI::GML::GMLFile>(ast.ptr()))

Userland/Libraries/LibGUI/Widget.h

@@ -357,10 +357,6 @@ public:
     ErrorOr<void> try_load_from_gml(StringView);
     ErrorOr<void> try_load_from_gml(StringView, UnregisteredChildHandler);
 
-    // FIXME: Replace all uses of load_from_gml() with try_load_from_gml()
-    bool load_from_gml(StringView gml_string);
-    bool load_from_gml(StringView, UnregisteredChildHandler);
-
     // FIXME: remove this when all uses of shrink_to_fit are eliminated
     void set_shrink_to_fit(bool);
     bool is_shrink_to_fit() const { return preferred_width().is_shrink() || preferred_height().is_shrink(); }