Syntax:
JSON_REMOVE(json_doc, path[, path] ...)

Removes data from a JSON document and returns the result. Returns NULL
if any argument is NULL. An error occurs if the json_doc argument is
not a valid JSON document or any path argument is not a valid path
expression or is $ or contains a * or ** wildcard.

The path arguments are evaluated left to right. The document produced
by evaluating one path becomes the new value against which the next
path is evaluated.

It is not an error if the element to be removed does not exist in the
document; in that case, the path does not affect the document.

URL: https://dev.mysql.com/doc/refman/8.0/en/json-modification-functions.html

