Deprecate WebSettings.LOAD_NORMAL cache mode.

This change is required after https://android-git.corp.google.com/g/210953

Change-Id: I4ec1f20369033e4214c141e73a3dabb087d512be
diff --git a/tests/tests/webkit/src/android/webkit/cts/WebSettingsTest.java b/tests/tests/webkit/src/android/webkit/cts/WebSettingsTest.java
index 1bc8a4f..054217e 100644
--- a/tests/tests/webkit/src/android/webkit/cts/WebSettingsTest.java
+++ b/tests/tests/webkit/src/android/webkit/cts/WebSettingsTest.java
@@ -235,9 +235,6 @@
         Thread.sleep(100); // Wait for open to be received on the icon db thread.
         assertEquals(WebSettings.LOAD_DEFAULT, mSettings.getCacheMode());
 
-        mSettings.setCacheMode(WebSettings.LOAD_NORMAL);
-        assertEquals(WebSettings.LOAD_NORMAL, mSettings.getCacheMode());
-
         mSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
         assertEquals(WebSettings.LOAD_CACHE_ELSE_NETWORK, mSettings.getCacheMode());
         final IconListenerClient iconListener = new IconListenerClient();