[CH] Remove clickhouse-dep and add extern-local-engine (#430)

Author: liuneng1994

utils/CMakeLists.txt

@@ -16,8 +16,11 @@ add_subdirectory (report)
 # Not used in package
 if (NOT DEFINED ENABLE_UTILS OR ENABLE_UTILS)
     add_subdirectory (compressor)
-    add_subdirectory (local-engine)
-    add_subdirectory (clickhouse-dep)
+    if (ENABLE_EXTERN_LOCAL_ENGINE)
+        add_subdirectory (extern-local-engine)
+    else()
+        add_subdirectory (local-engine)
+    endif()
 #    add_subdirectory (iotest)
     add_subdirectory (corrector_utf8)
     add_subdirectory (zookeeper-cli)