Stratosphère: Simplify some for loops (#76)

Simplifies some loops by removing the need to manually calculate or
re-specify the array size. Eliminates any chance of using the
wrong size and less typing.

stratosphere/loader/source/ldr_launch_queue.cpp

@@ -79,4 +79,4 @@ LaunchQueue::LaunchItem *LaunchQueue::get_item(u64 tid) {
         return NULL;
     }
     return &g_launch_queue[idx];
-}
+}