Revert "CMake: Don't install C++ module headers if module build is disabled"

This reverts commit 37057b4.

Author: charles-lunarg

CMakeLists.txt

@@ -113,18 +113,11 @@ if (VULKAN_HEADERS_ENABLE_INSTALL)
     include(GNUInstallDirs)
     include(CMakePackageConfigHelpers)
 
-    if(VULKAN_HEADERS_ENABLE_MODULE)
-        install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vk_video" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-	install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-        # Preserve source permissions https://github.com/KhronosGroup/Vulkan-Headers/issues/336
-        install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/registry" DESTINATION "${CMAKE_INSTALL_DATADIR}/vulkan" USE_SOURCE_PERMISSIONS)
-    else()
-	# Don't install C++ module files if modules aren't enabled
-        install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vk_video" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} PATTERN "*.cppm" EXCLUDE)
-        install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} PATTERN "*.cppm" EXCLUDE)
-        # Preserve source permissions https://github.com/KhronosGroup/Vulkan-Headers/issues/336
-        install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/registry" DESTINATION "${CMAKE_INSTALL_DATADIR}/vulkan" USE_SOURCE_PERMISSIONS PATTERN "*.cppm" EXCLUDE)
-    endif()
+    install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vk_video" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+    install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+    # Preserve source permissions https://github.com/KhronosGroup/Vulkan-Headers/issues/336
+    install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/registry" DESTINATION "${CMAKE_INSTALL_DATADIR}/vulkan" USE_SOURCE_PERMISSIONS)
+
 
     set_target_properties(Vulkan-Headers PROPERTIES EXPORT_NAME "Headers")
     install(TARGETS Vulkan-Headers