[chore](be) remove some unused code

be/src/olap/row_cursor.cpp

@@ -214,27 +214,6 @@ Status RowCursor::init_scan_key(TabletSchemaSPtr schema, const std::vector<std::
     return _init_scan_key(schema, scan_keys);
 }
 
-Status RowCursor::build_max_key() {
-    for (auto cid : _schema->column_ids()) {
-        const Field* field = column_schema(cid);
-        char* dest = cell_ptr(cid);
-        field->set_to_max(dest);
-        set_not_null(cid);
-    }
-    return Status::OK();
-}
-
-Status RowCursor::build_min_key() {
-    for (auto cid : _schema->column_ids()) {
-        const Field* field = column_schema(cid);
-        char* dest = cell_ptr(cid);
-        field->set_to_min(dest);
-        set_null(cid);
-    }
-
-    return Status::OK();
-}
-
 Status RowCursor::from_tuple(const OlapTuple& tuple) {
     if (tuple.size() != _schema->num_column_ids()) {
         return Status::Error<INVALID_ARGUMENT>(

be/src/olap/row_cursor.h

@@ -88,10 +88,6 @@ class RowCursor {
         return *reinterpret_cast<const char*>(cell(sign_idx).cell_ptr()) > 0;
     }
 
-    // set max/min for key field in _field_array
-    Status build_max_key();
-    Status build_min_key();
-
     char* get_buf() const { return _fixed_buf; }
 
     // this two functions is used in unit test

be/src/runtime_filter/runtime_filter.h

@@ -112,7 +112,7 @@ class RuntimeFilter {
     std::shared_ptr<RuntimeFilterWrapper> _wrapper;
 
     // will apply to remote node
-    bool _has_remote_target = false;
+    const bool _has_remote_target;
 
     // runtime filter type
     RuntimeFilterType _runtime_filter_type = RuntimeFilterType::UNKNOWN_FILTER;