ui: cleanup controls (#28809)

* cleanup controls

* restore LayoutWidget

selfdrive/ui/qt/maps/map_settings.cc

@@ -73,7 +73,6 @@ MapSettings::MapSettings(bool closeable, QWidget *parent)
   });
   frame->addWidget(current_widget);
   frame->addSpacing(32);
-  frame->addWidget(horizontal_line());
 
   QWidget *destinations_container = new QWidget(this);
   destinations_layout = new QVBoxLayout(destinations_container);

selfdrive/ui/qt/widgets/controls.cc

@@ -3,18 +3,6 @@
 #include <QPainter>
 #include <QStyleOption>
 
-QFrame *horizontal_line(QWidget *parent) {
-  QFrame *line = new QFrame(parent);
-  line->setFrameShape(QFrame::StyledPanel);
-  line->setStyleSheet(R"(
-    border-width: 1px;
-    border-bottom-style: solid;
-    border-color: gray;
-  )");
-  line->setFixedHeight(2);
-  return line;
-}
-
 AbstractControl::AbstractControl(const QString &title, const QString &desc, const QString &icon, QWidget *parent) : QFrame(parent) {
   QVBoxLayout *main_layout = new QVBoxLayout(this);
   main_layout->setMargin(0);

selfdrive/ui/qt/widgets/controls.h

@@ -11,8 +11,6 @@
 #include "selfdrive/ui/qt/widgets/input.h"
 #include "selfdrive/ui/qt/widgets/toggle.h"
 
-QFrame *horizontal_line(QWidget *parent = nullptr);
-
 class ElidedLabel : public QLabel {
   Q_OBJECT