Switch to LZ4 compression for compiled monitor code

[Sean Kauffman]

The RDC compression was an interesting idea but, in practice, we would be better served with something much more standard. LZ4 can be decompressed using a very small routine: https://github.com/jart/cosmopolitan/blob/467504308a103865c058f9a0ac858cc22e72240e/libc/nexgen32e/lz4cpy.c and compressed using standard tools. This would result less code to maintain and would almost definitely result in better compression and therefore a smaller binary.