Remove (almost all of) //sky/engine/web

sky/engine/public/BUILD.gn

Index: sky/engine/public/BUILD.gn
diff --git a/sky/engine/public/BUILD.gn b/sky/engine/public/BUILD.gn
index eb06cdcf44a6c7507bc82f427a6dab745273d0b7..264248abce16c0e26ebffbd3d47618d45ae72d77 100644
--- a/sky/engine/public/BUILD.gn
+++ b/sky/engine/public/BUILD.gn
@@ -80,41 +80,6 @@ source_set("platform_headers") {
 source_set("web_headers") {
   public = [
     "web/Sky.h",
-    "web/WebBeginFrameArgs.h",
-    "web/WebCache.h",
-    "web/WebCachedURLRequest.h",
-    "web/WebCompositionUnderline.h",
-    "web/WebDocument.h",
-    "web/WebElement.h",
-    "web/WebExceptionCode.h",
-    "web/WebFont.h",
-    "web/WebFontDescription.h",
-    "web/WebFrame.h",
-    "web/WebFrameClient.h",
-    "web/WebLocalFrame.h",
-    "web/WebNavigationPolicy.h",
-    "web/WebNavigationType.h",
-    "web/WebNavigatorContentUtilsClient.h",
-    "web/WebNode.h",
-    "web/WebPageVisibilityState.h",
-    "web/WebRange.h",
     "web/WebRuntimeFeatures.h",
-    "web/WebScriptSource.h",
-    "web/WebSettings.h",
-    "web/WebSpellCheckClient.h",
-    "web/WebTextAffinity.h",
-    "web/WebTextCheckingCompletion.h",
-    "web/WebTextCheckingResult.h",
-    "web/WebTextCheckingType.h",
-    "web/WebTextDecorationType.h",
-    "web/WebTextDirection.h",
-    "web/WebTextInputInfo.h",
-    "web/WebTextInputType.h",
-    "web/WebTextRun.h",
-    "web/WebURLLoaderOptions.h",
-    "web/WebView.h",
-    "web/WebViewClient.h",
-    "web/WebWidget.h",
-    "web/linux/WebFontRendering.h",
   ]
 }