Remove ash-disable-launcher-per-display flag

ash/root_window_controller_unittest.cc

Index: ash/root_window_controller_unittest.cc
diff --git a/ash/root_window_controller_unittest.cc b/ash/root_window_controller_unittest.cc
index 55b3ed26b2c7469df266bb096b2d2e205b893165..b33e01262a046d4a8454782252191d228e4aa6c8 100644
--- a/ash/root_window_controller_unittest.cc
+++ b/ash/root_window_controller_unittest.cc
@@ -144,15 +144,9 @@ TEST_F(RootWindowControllerTest, MAYBE_MoveWindows_Basic) {
   views::Widget* maximized = CreateTestWidget(gfx::Rect(700, 10, 100, 100));
   maximized->Maximize();
   EXPECT_EQ(root_windows[1], maximized->GetNativeView()->GetRootWindow());
-  if (Shell::IsLauncherPerDisplayEnabled()) {
-    EXPECT_EQ("600,0 500x452", maximized->GetWindowBoundsInScreen().ToString());
-    EXPECT_EQ("0,0 500x452",
-              maximized->GetNativeView()->GetBoundsInRootWindow().ToString());
-  } else {
-    EXPECT_EQ("600,0 500x500", maximized->GetWindowBoundsInScreen().ToString());
-    EXPECT_EQ("0,0 500x500",
-              maximized->GetNativeView()->GetBoundsInRootWindow().ToString());
-  }
+  EXPECT_EQ("600,0 500x452", maximized->GetWindowBoundsInScreen().ToString());
+  EXPECT_EQ("0,0 500x452",
+            maximized->GetNativeView()->GetBoundsInRootWindow().ToString());
 
   views::Widget* minimized = CreateTestWidget(gfx::Rect(800, 10, 100, 100));
   minimized->Minimize();