LibGUI: Remove Model::sibling() since it's the same as index()

... I'm not sure what the idea was here, but since these functions do
the same thing, let's only have index().

1 files changed, 1 insertions, 1 deletions

diff --git a/Applications/FileManager/DirectoryView.cpp b/Applications/FileManager/DirectoryView.cpp
index 2226ded8bc..a48a9ff8a1 100644
--- a/Applications/FileManager/DirectoryView.cpp
+++ b/Applications/FileManager/DirectoryView.cpp
@@ -325,7 +325,7 @@ void DirectoryView::update_statusbar()
 
     current_view().selection().for_each_index([&](auto& index) {
         auto& model = *current_view().model();
-        auto size_index = model.sibling(index.row(), GUI::FileSystemModel::Column::Size, model.parent_index(index));
+        auto size_index = model.index(index.row(), GUI::FileSystemModel::Column::Size, model.parent_index(index));
         auto file_size = model.data(size_index).to_i32();
         selected_byte_count += file_size;
     });