style: remove copyright date

Author: Arhell

etc/cli.angular.io/index.html

@@ -126,7 +126,7 @@ <h4>Test, Lint, Format</h4>
                 </ul>
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             <div class="mdl-cell mdl-cell--9-col">
-                <p class="mdl-typography--font-light power-text"> Powered by Google ©2010-2016. Code licensed under an <a href="/license.html">MIT-style License</a>. Documentation licensed under <a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</p>
+                <p class="mdl-typography--font-light power-text"> Powered by Google. Code licensed under an <a href="/license.html">MIT-style License</a>. Documentation licensed under <a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</p>
             </div>
         </div>
     </div>