docs: comment-out unused style (the png currently does not resolve)

Change-Id: I665068f0808a81c98cbd0685f68ed7f4df4cf0e0
diff --git a/tools/droiddoc/templates-sdk/assets/css/fullscreen.css b/tools/droiddoc/templates-sdk/assets/css/fullscreen.css
index 7503924..71cf65b 100644
--- a/tools/droiddoc/templates-sdk/assets/css/fullscreen.css
+++ b/tools/droiddoc/templates-sdk/assets/css/fullscreen.css
@@ -2,6 +2,7 @@
 /* =============================================================================
    Columns
    ========================================================================== */
+/* Applied to body to debug layout alignments
 .grid {
   width:100%;
   height:100%;
@@ -10,6 +11,7 @@
   margin:auto;
   position:absolute;
 }   
+*/
 
 @media screen, projection, print {
 .full {