Revert of Fix bug where removed (but not deleted) windows are not reflected in the tree properly

ash/common/devtools/ash_devtools_unittest.cc

Index: ash/common/devtools/ash_devtools_unittest.cc
diff --git a/ash/common/devtools/ash_devtools_unittest.cc b/ash/common/devtools/ash_devtools_unittest.cc
index 2bbcacd02aca8105ab80b3e38f491a69974ee184..1a79c07dc2cf5032503b3a7dfaf9103bde2a898a 100644
--- a/ash/common/devtools/ash_devtools_unittest.cc
+++ b/ash/common/devtools/ash_devtools_unittest.cc
@@ -225,7 +225,7 @@
   ExpectChildNodeRemoved(parent_node->getNodeId(), child_node->getNodeId());
 }
 
-TEST_F(AshDevToolsTest, WindowReorganizedChildNodeRearranged) {
+TEST_F(AshDevToolsTest, WindowReorganizedChildNodeRemovedAndInserted) {
   // Initialize DOMAgent
   std::unique_ptr<ui::devtools::protocol::DOM::Node> root;
   dom_agent()->getDocument(&root);
@@ -249,31 +249,6 @@
   ExpectChildNodeInserted(target_node->getNodeId(), sibling_node->getNodeId());
 }
 
-TEST_F(AshDevToolsTest, WindowReorganizedChildNodeRemovedAndInserted) {
-  // Initialize DOMAgent
-  std::unique_ptr<ui::devtools::protocol::DOM::Node> root;
-  dom_agent()->getDocument(&root);
-
-  WmWindow* root_window = WmShell::Get()->GetPrimaryRootWindow();
-  WmWindow* target_window = root_window->GetChildren()[1];
-  WmWindow* child_window = root_window->GetChildren()[0]->GetChildren()[0];
-
-  DOM::Node* root_node = root->getChildren(nullptr)->get(0);
-  DOM::Node* parent_node = root_node->getChildren(nullptr)->get(0);
-  DOM::Node* target_node = root_node->getChildren(nullptr)->get(1);
-  Array<DOM::Node>* target_node_children = target_node->getChildren(nullptr);
-  DOM::Node* sibling_node =
-      target_node_children->get(target_node_children->length() - 1);
-  DOM::Node* child_node = parent_node->getChildren(nullptr)->get(0);
-
-  Compare(target_window, target_node);
-  Compare(child_window, child_node);
-  child_window->GetParent()->RemoveChild(child_window);
-  target_window->AddChild(child_window);
-  ExpectChildNodeRemoved(parent_node->getNodeId(), child_node->getNodeId());
-  ExpectChildNodeInserted(target_node->getNodeId(), sibling_node->getNodeId());
-}
-
 TEST_F(AshDevToolsTest, WindowStackingChangedChildNodeRemovedAndInserted) {
   // Initialize DOMAgent
   std::unique_ptr<ui::devtools::protocol::DOM::Node> root;