Remove Routing with a Fully Qualified Type name

This behavior is not trim-compatible, since it just a random string "route name" and calls Type.GetType with it, and then Activator.CreateInstance. The trimmer might have removed the whole type, or even the constructor on the Type. This would cause a trimmed application to behave differently than an untrimmed application.

I do not know of anyone who relies on this behavior, and there are no tests for it. So removing it seems like the best path forward.

Contributes to dotnet#1962

src/Controls/src/Core/Routing.cs

@@ -142,23 +142,6 @@ public static Element GetOrCreateContent(string route, IServiceProvider services
 			if (s_routes.TryGetValue(route, out var content))
 				result = content.GetOrCreate(services);
 
-			if (result == null)
-			{
-				// okay maybe its a type, we'll try that just to be nice to the user
-				var type = Type.GetType(route);
-				if (type != null)
-				{
-					if (services != null)
-					{
-						result = (services.GetService(type) ?? Activator.CreateInstance(type)) as Element;
-					}
-					else
-					{
-						result = Activator.CreateInstance(type) as Element;
-					}
-				}
-			}
-
 			if (result != null)
 				SetRoute(result, route);