cardhook: Drop cardhook

This is part of chunihook now.

cardhook/meson.build

@@ -1,20 +0,0 @@
-shared_library(
-    'cardhook',
-    name_prefix : '',
-    include_directories: inc,
-    implicit_include_directories : false,
-    c_pch : '../precompiled.h',
-    dependencies : [
-        capnhook.get_variable('hook_dep'),
-        capnhook.get_variable('hooklib_dep'),
-    ],
-    link_with : [
-        aimeio_dll,
-        board_lib,
-        hooklib_lib,
-        util_lib,
-    ],
-    sources : [
-        'dllmain.c',
-    ],
-)