Revert "RISC OS: use SocketWatch for socket activity"This reverts commit 9e4f598b7b2f6f92304f5f9e4ed359e7905b37a9.
Revert "RISC OS: add SocketWatch module to distribution"This reverts commit 98b3d3c191fe9097cd4b8d67060aebcea095a85d.