NXDK: Temporarily disable audio

Disabled for now because SDL_audiolib fails to link
because NXDK does not support exception at all (and so does not have
std::terminate): realnc/SDL_audiolib#36

SDL_audiolib only has one line of code that uses exceptions
in the entire codebase so hopefully this can be fixed.

CMake/platforms/xbox_nxdk.cmake

@@ -2,6 +2,9 @@ set(NONET ON)
 set(ASAN OFF)
 set(UBSAN OFF)
 
+# Temporary workaround for https://github.com/realnc/SDL_audiolib/issues/36
+set(NOSOUND ON)
+
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/xbox_nxdk/finders")
 
 set(DEVILUTIONX_SYSTEM_BZIP2 OFF)