docs: remove empty page and expand system requirements based on URL hash

Change-Id: I9e90af894e6213ef642d3341d169ebb4ec0b8628
diff --git a/docs/html/sdk/index.jd b/docs/html/sdk/index.jd
index a20d0b1..02f8d6e 100644
--- a/docs/html/sdk/index.jd
+++ b/docs/html/sdk/index.jd
@@ -136,3 +136,8 @@
 
 </div>
 
+<script>
+  if (location.hash == "#Requirements") {
+    $('.reqs').show();
+  }
+</script>