Utils: Make TreeViews use setUniformRowHeights by default

When applicable, the flag makes a significant difference in
performacnce. However is easily forgotten in cases where it
is applicable, and cases where it is accidentally used are
easily spotted visually. So arguably, opt-out is a better
default than opt-in.

Change-Id: I88aeb05b42533ba4e23c39573a3ddd016343cd55
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/projectexplorer/addrunconfigdialog.cpp

@@ -95,10 +95,7 @@ private:
 class CandidatesTreeView : public TreeView
 {
 public:
-    CandidatesTreeView(QWidget *parent) : TreeView(parent)
-    {
-        setUniformRowHeights(true);
-    }
+    CandidatesTreeView(QWidget *parent) : TreeView(parent) {}
 
 private:
     QSize sizeHint() const override