[Refactor] Cleanup some unused include (#9063)

be/src/runtime/user_function_cache.cpp

@@ -18,7 +18,6 @@
 #include "runtime/user_function_cache.h"
 
 #include <atomic>
-#include <boost/algorithm/string/classification.hpp> // boost::is_any_of
 #include <boost/algorithm/string/predicate.hpp>      // boost::algorithm::ends_with
 #include <regex>
 #include <vector>
@@ -28,7 +27,6 @@
 #include "http/http_client.h"
 #include "util/dynamic_util.h"
 #include "util/file_utils.h"
-#include "util/jni-util.h"
 #include "util/md5.h"
 #include "util/spinlock.h"