app-misc/clifm: Comply with POSIX.1-2008 as much as possible, removing support for Linux-specific "file birth time" information, inotify, and arc4random. Exceptions: for flags 'archive', 'media', and 'lira', although they require non-compliant functionality, enabling them selectively enables the non-compliant code, even with this flag set. (Hence, if your goal is POSIX compliance, make sure to disable those flags too!)