docs: fix NDK r7c release data and remove "new" tag

Change-Id: I37d2dfb46aef66b75cfd93a21005748358d457ec

Author: scottamain

docs/html/sdk/ndk/index.jd

@@ -62,7 +62,7 @@ padding: .25em 1em;
 <div class="toggleable open">
   <a href="#" onclick="return toggleDiv(this)"><img src=
   "{@docRoot}assets/images/triangle-opened.png" class="toggle-img" height="9px" width="9px">
-  Android NDK, Revision 7c</a> <em>(March 2012)</em>
+  Android NDK, Revision 7c</a> <em>(April 2012)</em>
 
   <div class="toggleme">
     <p>This release of the NDK includes an important fix for Tegra2-based devices, and a few

docs/html/sdk/sdk_toc.cs

@@ -191,9 +191,7 @@
       <span style="display:none" class="zh-TW"></span>
     </span>
     <ul>
-      <li><a href="<?cs var:toroot ?>sdk/ndk/index.html">Android NDK, r7c</a>
-        <span class="new">new!</span>
-        </li>
+      <li><a href="<?cs var:toroot ?>sdk/ndk/index.html">Android NDK, r7c</a></li>
       <li><a href="<?cs var:toroot ?>sdk/ndk/overview.html">What is the NDK?</a></li>
     </ul>
   </li>