AutoTest: Remove unused code

Change-Id: I54a4666ab4619059fc5ad7a2597e10344c376a5b
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>

src/plugins/autotest/testtreeitem.cpp

@@ -258,14 +258,6 @@ void TestTreeItem::markForRemovalRecursively(bool mark)
         childItem(row)->markForRemovalRecursively(mark);
 }
 
-QList<QString> TestTreeItem::getChildNames() const
-{
-    QList<QString> names;
-    for (int row = 0, count = childCount(); row < count; ++row)
-        names << childItem(row)->name();
-    return names;
-}
-
 TestTreeItem *TestTreeItem::parentItem() const
 {
     return static_cast<TestTreeItem *>(parent());

src/plugins/autotest/testtreeitem.h

@@ -97,7 +97,6 @@ public:
     void markForRemoval(bool mark);
     void markForRemovalRecursively(bool mark);
     bool markedForRemoval() const { return m_markedForRemoval; }
-    QList<QString> getChildNames() const;
     TestTreeItem *parentItem() const;
     TestTreeItem *childItem(int row) const;