"will be removed once" is a correct and usable phrase in written English.
You could use it when expressing that something will be taken away or deleted at a certain point in time. For example, "If the issue is not resolved, the rule will be removed once the new legislation comes into effect."
The England and Wales Cricket Board issued no comment following reports in the national press on Friday that Moores will be removed once Strauss takes up his position in the coming days.
A temporary rock wall was also constructed to protect SR 530 and will be removed once WSDOT realigns the highway north of Darrington, which is expected to be completed after 2011.
All data, including comments, will be removed once a photo is deleted.
The second option will only keep your data for your current session, and it will be removed once you exit your browser.
This highlights the deep-seated skepticism that will only be removed once a credible and clear long-term plan is put into action.
These pins will later be removed once your finger has healed.
The structures will be or can be removed once the permanent station is built, Mr. Trevor said.
The first part of the statement is a bit vague with the idea of "modifications" and talk of doing what's best for their users, but the second paragraph directly states that "similarities" to Reeder will be removed at once.
The photo will be removed completely once the server has been refreshed.
Women became able to apply for all positions other than special forces roles in the Army on 1 January 2013; it is planned that this remaining restriction will be removed in 2014 once the physical fitness standards required for service in these units are determined.
Each utensil will be removed from the table once it has been used.
