[cmake] Don't scan for CXX modules (#4063)

Added a bunch of "Scanning ... for CXX dependencies" steps to the build.
We don't use modules and probably won't for a very long time, so we
don't need this.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4063
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

CMakeLists.txt

@@ -10,6 +10,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/externals/cmake-modul
 
 set(CPM_SOURCE_CACHE ${CMAKE_SOURCE_DIR}/.cache/cpm)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_CXX_SCAN_FOR_MODULES 0)
 
 include(DetectPlatform)
 include(DetectArchitecture)