Get rid of the modal popup for empty wikis

Ugly and clumsy.

core/messages/GettingStarted.tid

@@ -1,11 +0,0 @@
-title: $:/messages/GettingStarted
-type: text/vnd.tiddlywiki
-subtitle: Welcome to ~TiddlyWiki
-footer: <$button message="tw-close-tiddler" class="btn btn-primary">Close</$button>
-help: http://five.tiddlywiki.com/static/GettingStarted
-
-This ~TiddlyWiki is empty. 
-
-You can create and edit tiddlers, but before you use ~TiddlyWiki in earnest it is strongly advised that you verify that you can save and retrieve your changes.
-
-~TiddlyWiki5 is currently a preliminary alpha release. Visit http://five.tiddlywiki.com/ for the latest information on how to use it.

core/modules/startup.js

@@ -117,11 +117,6 @@ exports.startup = function() {
 			$tw.utils.dispatchCustomEvent(document,"tw-modal",{
 				param: "$:/messages/SaveInstructions"
 			});
-		} else if($tw.wiki.countTiddlers() === 0){
-			// Otherwise, if give instructions if this is an empty TiddlyWiki
-			$tw.utils.dispatchCustomEvent(document,"tw-modal",{
-				param: "$:/messages/GettingStarted"
-			});
 		}
 	} else {
 		// On the server, start a commander with the command line arguments