[Qt] don't clear the display filter when a capture file is closed

Bug: 10951
Change-Id: I958aa9e88c30ac20cd7d7971ee903ac97265c1f4
Reviewed-on: https://code.wireshark.org/review/7098
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Martin Kaiser <wireshark@kaiser.cx>

1 files changed, 0 insertions, 6 deletions

diff --git a/ui/qt/main_window_slots.cpp b/ui/qt/main_window_slots.cpp
index 8463d8301c..709e6c6f44 100644
--- a/ui/qt/main_window_slots.cpp
+++ b/ui/qt/main_window_slots.cpp
@@ -614,12 +614,6 @@ void MainWindow::captureFileClosed() {
 
     main_ui_->statusBar->popFileStatus();
 
-    if (df_combo_box_)
-    {
-        df_combo_box_->lineEdit()->setText("");
-        df_combo_box_->applyDisplayFilter();
-    }
-
     setTitlebarForSelectedTreeRow();
     setMenusForSelectedTreeRow();
 }