次のようなテキストがあります。
This is a normal line.
6 spaces are before me. //line 1
4 spaces are before me. //line 2
3 spaces are before me. //line 3
6 spaces are before me. //line 4
4 spaces are before me. //line 5
Another normal line.
2 spaces are before me. But that is ok. //line 7
Line goes on.
vim を使用して 1 行目から 5 行目までのすべてのスペースを選択して削除するにはどうすればよいですか?