an environment list that can be freed using g_strfreev() (e.g., as returned from g_get_environ()), or NULL for an empty environment list. [allow-none][array zero-terminated=1][transfer full]
the environment variable to remove, must not contain '='
the updated environment list. Free it using g_strfreev(). [array zero-terminated=1][transfer full]
Removes the environment variable variable from the provided environment envp. Since 2.32