start(): don't defer event

We'd otherwise emit the start event much after the actual start of the
container when --sdnotify=healthy.  I missed adding the change to commit
0cfd12786f.

[NO NEW TESTS NEEDED]

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

libpod/container_internal.go

@@ -1241,7 +1241,7 @@ func (c *Container) start(ctx context.Context) error {
 		}
 	}
 
-	defer c.newContainerEvent(events.Start)
+	c.newContainerEvent(events.Start)
 
 	if err := c.save(); err != nil {
 		return err