Remove left-over PageCache stuff

LayoutTests/compositing/iframes/page-cache-layer-tree-expected.txt

Index: LayoutTests/compositing/iframes/page-cache-layer-tree-expected.txt
diff --git a/LayoutTests/compositing/iframes/page-cache-layer-tree-expected.txt b/LayoutTests/compositing/iframes/page-cache-layer-tree-expected.txt
deleted file mode 100644
index 9070fbe973f884ba11e125d3728b1bb219210cf5..0000000000000000000000000000000000000000
--- a/LayoutTests/compositing/iframes/page-cache-layer-tree-expected.txt
+++ /dev/null
@@ -1,103 +0,0 @@
-ALERT: pageshow - not from cache
-ALERT: pagehide - entering cache
-ALERT: pageshow - from cache
-This tests that layers are rebuilt properly after the page is restored from the page cache.
-
-
-
-(GraphicsLayer
-  (bounds 800.00 600.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 800.00 600.00)
-      (contentsOpaque 1)
-      (children 4
-        (GraphicsLayer
-          (position 8.00 50.00)
-          (bounds 370.00 220.00)
-          (drawsContent 1)
-          (children 1
-            (GraphicsLayer
-              (position 35.00 35.00)
-              (children 1
-                (GraphicsLayer
-                  (bounds 285.00 135.00)
-                  (children 1
-                    (GraphicsLayer
-                      (children 1
-                        (GraphicsLayer
-                          (bounds 352.00 352.00)
-                          (children 1
-                            (GraphicsLayer
-                              (bounds 352.00 352.00)
-                              (drawsContent 1)
-                              (children 1
-                                (GraphicsLayer
-                                  (position 8.00 8.00)
-                                  (bounds 202.00 202.00)
-                                  (contentsOpaque 1)
-                                  (drawsContent 1)
-                                  (transform [0.71 0.71 0.00 0.00] [-0.71 0.71 0.00 0.00] [0.00 0.00 1.00 0.00] [100.00 100.00 0.00 1.00])
-                                )
-                              )
-                            )
-                          )
-                        )
-                      )
-                    )
-                  )
-                )
-              )
-            )
-          )
-        )
-        (GraphicsLayer
-          (position 13.00 55.00)
-          (bounds 50.00 50.00)
-        )
-        (GraphicsLayer
-          (position 8.00 274.00)
-          (bounds 370.00 220.00)
-          (drawsContent 1)
-          (children 1
-            (GraphicsLayer
-              (position 35.00 35.00)
-              (children 1
-                (GraphicsLayer
-                  (bounds 285.00 135.00)
-                  (children 1
-                    (GraphicsLayer
-                      (children 1
-                        (GraphicsLayer
-                          (bounds 508.00 608.00)
-                          (children 1
-                            (GraphicsLayer
-                              (bounds 508.00 608.00)
-                              (drawsContent 1)
-                              (children 1
-                                (GraphicsLayer
-                                  (position 108.00 100.00)
-                                  (bounds 200.00 200.00)
-                                  (contentsOpaque 1)
-                                )
-                              )
-                            )
-                          )
-                        )
-                      )
-                    )
-                  )
-                )
-              )
-            )
-          )
-        )
-        (GraphicsLayer
-          (position 13.00 279.00)
-          (bounds 50.00 50.00)
-        )
-      )
-    )
-  )
-)
-