commands: Revert the recent changes that allowed profiling on server rebuilds

There have been indications that this may freeze the server.

commands/server.go

@@ -495,19 +495,16 @@ func (c *serverCommand) Run(ctx context.Context, cd *simplecobra.Commandeer, arg
 
 	}
 
-	var close func()
 	err := func() error {
 		defer c.r.timeTrack(time.Now(), "Built")
 		var err error
-		close, err = c.build()
+		err = c.build()
 		return err
 	}()
 	if err != nil {
 		return err
 	}
 
-	defer close()
-
 	return c.serve()
 }