io: i really ought to be working on the ppu and apu by now

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

include/memory.hh

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "header.hh"
-#include "io.hh"
 #include <array>
 #include <cstddef>
 #include <cstdint>
@@ -51,8 +50,6 @@ class Memory {
     MEMORY_REGION(ROM_2, 0x0C000000)
 
 #undef MEMORY_REGION
-
-    IoRegisters io;
     std::unordered_map<uint32_t, uint8_t> invalid_mem;
     std::vector<uint8_t> rom;
     Header header;