What's "in so removing it" mean?

Native speaker’s answer
Rebecca
"In so removing it" means "by removing it," it indicates how something was achieved. "In so" can be used with other verbs in a similar way. It draws emphasis to an action being done. Ex: In so taking their opponent's weapons, they left them defenseless. = By taking their opponent's weapons, they left them defenseless. Ex: In so removing the old stuff from the cupboard, they could store new things there.