Doc change: Google Play services 4.0 reference docs.

Change-Id: I61c536a80a720364eadec727b9c870d5b869be1a
(cherry picked from commit 28167899617b59874aeeb0f6cd822ca2f6cc9e55)
diff --git a/docs/html/google/index.jd b/docs/html/google/index.jd
index 0e73b94..37a35fc 100644
--- a/docs/html/google/index.jd
+++ b/docs/html/google/index.jd
@@ -112,7 +112,7 @@
   <div class="cell-icon">
     <img src="{@docRoot}images/google/wallet.png" width="40" />
   </div>
-    <h4><a class="external-link" href="{@docRoot}google/play-services/wallet.html"
+    <h4><a href="{@docRoot}google/play-services/wallet.html"
     >Google Wallet Instant Buy</a></h4>
     <p>Provide fast and easy checkout in your app when selling physical goods and services.
     Increase conversions by streamlining your purchase flow and reducing the amount of
@@ -138,7 +138,7 @@
   <div class="cell-icon">
     <img src="{@docRoot}images/google/google-mobile-ads.png" width="40" />
   </div>
-    <h4><a class="external-link" href="{@docRoot}google/play-services/ads.html"
+    <h4><a href="{@docRoot}google/play-services/ads.html"
     >Google Mobile Ads</a></h4>
     <p>Display ads from Google Mobile Ads offer you an alternative revenue opportunity that leverages
     multiple ad networks with targeted ads and several display formats.