Just because a language does not have a function of the name you are seeking, it does not mean that you can't do what you want to do- just as easily.

Different (programming) languages have different names for functions, because the people who created the languages- were different people, who had their own idea of what the 'remove' function should be named.

You're invited to read about perl and find what you are seeking. You can also search for something like 'remove' on that site.