Remove redundant code

src/Interpreters/ActionsVisitor.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <optional>
 #include <string_view>
 #include <Core/NamesAndTypes.h>
 #include <Interpreters/Context_fwd.h>

src/Interpreters/ExpressionAnalyzer.cpp

@@ -875,9 +875,6 @@ void ExpressionAnalyzer::makeWindowDescriptions(ActionsDAGPtr actions)
     {
         assert(function_node->is_window_function);
 
-        // Find the window corresponding to this function. It may be either
-        // referenced by name and previously defined in WINDOW clause, or it
-        // may be defined inline.
         WindowFunctionDescription window_function;
         window_function.function_node = function_node;
         window_function.column_name
@@ -920,6 +917,9 @@ void ExpressionAnalyzer::makeWindowDescriptions(ActionsDAGPtr actions)
                 window_function.argument_types,
                 window_function.function_parameters, properties);
 
+        // Find the window corresponding to this function. It may be either
+        // referenced by name and previously defined in WINDOW clause, or it
+        // may be defined inline.
         if (!function_node->window_name.empty())
         {
             auto it = window_descriptions.find(function_node->window_name);

src/Interpreters/WindowDescription.h

@@ -95,8 +95,6 @@ struct WindowDescription
     // The window functions that are calculated for this window.
     std::vector<WindowFunctionDescription> window_functions;
 
-    // Expressions which use calculated for this window results of window functions.
-    std::vector<const ASTFunction *> expressions_with_window_functions;
 
     std::string dump() const;