Remove redundant file

dbms/src/Storages/AlterMetadataCommands.h

@@ -1,76 +0,0 @@
-#pragma once
-#include <Core/Types.h>
-#include <optional>
-#include <Parsers/IAST.h>
-#include <Common/SettingsChanges.h>
-
-
-namespace DB
-{
-class AlterMetadataCommand
-{
-    enum Type
-    {
-        COMMENT_COLUMN,
-        MODIFY_ORDER_BY,
-        ADD_INDEX,
-        ADD_CONSTRAINT,
-        DROP_CONSTRAINT,
-        MODIFY_TTL,
-        MODIFY_SETTING,
-    };
-
-    Type type;
-
-    String column_name;
-
-    std::optional<String> comment;
-
-    /// For DROP_COLUMN, MODIFY_COLUMN, COMMENT_COLUMN
-    bool if_exists = false;
-
-    /// For MODIFY_ORDER_BY
-    ASTPtr order_by;
-
-    /// For ADD INDEX
-    ASTPtr index_decl;
-    String after_index_name;
-
-    /// For ADD/DROP INDEX
-    String index_name;
-
-    // For ADD CONSTRAINT
-    ASTPtr constraint_decl;
-
-    // For ADD/DROP CONSTRAINT
-    String constraint_name;
-
-    /// For MODIFY TTL
-    ASTPtr ttl;
-
-    /// indicates that this command should not be applied, for example in case of if_exists=true and column doesn't exist.
-    bool ignore = false;
-
-    /// For MODIFY SETTING
-    SettingsChanges settings_changes;
-};
-
-class AlterMetadataCommands : public std::vector<AlterMetadataCommand>
-{
-public:
-    void apply(
-        IndicesDescription & indices_description,
-        ConstraintsDescription & constraints_description,
-        ASTPtr & order_by_ast,
-        ASTPtr & primary_key_ast,
-        ASTPtr & ttl_table_ast,
-        SettingsChanges & changes) const;
-
-    /// Apply alter commands only for settings. Exception will be thrown if any other part of table structure will be modified.
-    void applyForSettings(SettingsChanges & changes) const;
-
-    void validate(const IStorage & table, const Context & context);
-    bool isModifyingData() const;
-    bool isSettingsAlter() const;
-};
-}