diff --git a/datafusion/functions/src/unicode/mod.rs b/datafusion/functions/src/unicode/mod.rs
index a391b8ba11dc..9e8c07cd36ed 100644
--- a/datafusion/functions/src/unicode/mod.rs
+++ b/datafusion/functions/src/unicode/mod.rs
@@ -25,7 +25,6 @@ pub mod character_length;
 pub mod find_in_set;
 pub mod left;
 pub mod lpad;
-pub mod planner;
 pub mod reverse;
 pub mod right;
 pub mod rpad;
diff --git a/datafusion/functions/src/unicode/planner.rs b/datafusion/functions/src/unicode/planner.rs
deleted file mode 100644
index d618913658c3..000000000000
--- a/datafusion/functions/src/unicode/planner.rs
+++ /dev/null
@@ -1,44 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you under the Apache License, Version 2.0 (the
-// "License"); you may not use this file except in compliance
-// with the License.  You may obtain a copy of the License at
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing,
-// software distributed under the License is distributed on an
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// KIND, either express or implied.  See the License for the
-// specific language governing permissions and limitations
-// under the License.
-
-//! SQL planning extensions like [`PositionPlanner`]
-
-use datafusion_common::Result;
-use datafusion_expr::{
-    expr::ScalarFunction,
-    planner::{PlannerResult, UserDefinedSQLPlanner},
-    sqlparser, Expr,
-};
-
-#[derive(Default)]
-pub struct PositionPlanner {}
-
-impl UserDefinedSQLPlanner for PositionPlanner {
-    fn plan_udf(
-        &self,
-        sql: &sqlparser::ast::Expr,
-        args: Vec<Expr>,
-    ) -> Result<PlannerResult<Vec<Expr>>> {
-        let sqlparser::ast::Expr::Position { .. } = sql else {
-            return Ok(PlannerResult::Original(args));
-        };
-
-        Ok(PlannerResult::Planned(Expr::ScalarFunction(
-            ScalarFunction::new_udf(crate::unicode::strpos(), args),
-        )))
-    }
-}