Prepare to remove style support again

SineStriker

2023-12-22 a5d13e19dd7f6037e10b649c49805922ae5e0fa6

 src/core/CMakeLists.txt

@@ -62,6 +62,22 @@
    endif()
endif()

if(QWINDOWKIT_ENABLE_STYLE_AGENT)
    list(APPEND _src
        style/styleagent.h
        style/styleagent_p.h
        style/styleagent.cpp
    )

    if(WIN32)
        list(APPEND _src style/styleagent_win.cpp)
    elseif(APPLE)
        list(APPEND _src style/styleagent_mac.mm)
    else()
        list(APPEND _src style/styleagent_linux.cpp)
    endif()
endif()

qwk_add_library(${PROJECT_NAME} AUTOGEN
    SOURCES ${_src}
    LINKS