Revert "Wrap one more Context"

This reverts commit f0c97c192953010508e2c97991c67243ec3ee05e. The change
was needed in AOSP before the L release but is obsolete now and depends
on another change that was skipped.
diff --git a/chromium/java/com/android/webview/chromium/WebViewContentsClientAdapter.java b/chromium/java/com/android/webview/chromium/WebViewContentsClientAdapter.java
index 0c034b3..8d92630 100644
--- a/chromium/java/com/android/webview/chromium/WebViewContentsClientAdapter.java
+++ b/chromium/java/com/android/webview/chromium/WebViewContentsClientAdapter.java
@@ -986,9 +986,8 @@
         if (result == null) {
             // The ic_media_video_poster icon is transparent so we need to draw it on a gray
             // background.
-            Context ctx = ResourcesContextWrapperFactory.get(mWebView.getContext());
             Bitmap poster = BitmapFactory.decodeResource(
-                    ctx.getResources(),
+                    mWebView.getContext().getResources(),
                     R.drawable.ic_media_video_poster);
             result = Bitmap.createBitmap(poster.getWidth(), poster.getHeight(), poster.getConfig());
             result.eraseColor(Color.GRAY);