diff --git a/extensions/x-studio.cmake b/extensions/x-studio.cmake
deleted file mode 100644
index 4d6fbecf39..0000000000
--- a/extensions/x-studio.cmake
+++ /dev/null
@@ -1,35 +0,0 @@
-# x-studio spec extensions
-if(BUILD_EXTENSION_XS_IDE)
-    ## libeditor
-    add_subdirectory(libeditor)
-    if(BUILD_EXTENSION_SPINE)
-        target_compile_definitions(libeditor PUBLIC CC_BUILD_WITH_SPINE=1)
-        if(BUILD_SHARED_LIBS)
-          target_link_libraries(libeditor spine particle3d)
-        else()
-          target_include_directories(libeditor PUBLIC ${CMAKE_CURRENT_LIST_DIR}/spine/runtime/include)
-        endif()
-    endif()
-
-    ## libccs30
-    add_subdirectory(libccs30)
-    if(BUILD_EXTENSION_DRAGONBONES)
-        target_compile_definitions(libccs30 PRIVATE CC_BUILD_WITH_DRANGBONES=1)
-        if(BUILD_SHARED_LIBS)
-          target_link_libraries(libccs30 DragonBones)
-        endif()
-    endif()
-    target_link_libraries(libccs30 libeditor)
-
-    ## libccs19
-    add_subdirectory(libccs19)
-    target_link_libraries(libccs19 libeditor)
-
-    ## libccs20
-    add_subdirectory(libccs20)
-    target_link_libraries(libccs20 libeditor)
-
-    ## libccs21
-    add_subdirectory(libccs21)
-    target_link_libraries(libccs21 libeditor)
-endif()