diff --git a/util/slice/slice.go b/util/slice/slice.go
index 12738614a115f..078772d58c15a 100644
--- a/util/slice/slice.go
+++ b/util/slice/slice.go
@@ -39,16 +39,3 @@ func AllOf(s interface{}, p func(int) bool) bool {
 	}
 	return NoneOf(s, np)
 }
-
-// Copy is a deep copy of the slice.
-func Copy[T any](a []*T) []*T {
-	b := make([]*T, len(a))
-	for i, p := range a {
-		if p == nil {
-			continue
-		}
-		v := *p
-		b[i] = &v
-	}
-	return b
-}
diff --git a/util/slice/slice_test.go b/util/slice/slice_test.go
index 787e0584c0f77..5a9b9ec17100f 100644
--- a/util/slice/slice_test.go
+++ b/util/slice/slice_test.go
@@ -43,19 +43,3 @@ func TestSlice(t *testing.T) {
 		})
 	}
 }
-
-func TestCopy(t *testing.T) {
-	type T int
-	v0, v1, v2, v3 := T(0), T(1), T(2), T(3)
-	s := []*T{&v0, &v1, &v2, &v3, nil}
-	e := Copy(s)
-	require.Equal(t, len(s), len(e))
-	for i := range s {
-		if s[i] == nil {
-			require.Nil(t, e[i])
-		} else {
-			require.Equal(t, *s[i], *e[i])
-			require.True(t, s[i] != e[i])
-		}
-	}
-}
diff --git a/util/table-filter/BUILD.bazel b/util/table-filter/BUILD.bazel
index 7c395d376cd36..7181e79254c93 100644
--- a/util/table-filter/BUILD.bazel
+++ b/util/table-filter/BUILD.bazel
@@ -5,7 +5,6 @@ go_library(
     srcs = [
         "column_filter.go",
         "compat.go",
-        "helper.go",
         "matchers.go",
         "parser.go",
         "table_filter.go",
diff --git a/util/table-filter/column_filter.go b/util/table-filter/column_filter.go
index f8f06a09c8e4e..bbe82609272a0 100644
--- a/util/table-filter/column_filter.go
+++ b/util/table-filter/column_filter.go
@@ -14,7 +14,10 @@
 
 package filter
 
-import "strings"
+import (
+	"slices"
+	"strings"
+)
 
 // ColumnFilter is a structure to check if a column should be included for processing.
 type ColumnFilter interface {
@@ -43,7 +46,7 @@ func ParseColumnFilter(args []string) (ColumnFilter, error) {
 		}
 	}
 
-	reverse(p.rules)
+	slices.Reverse(p.rules)
 
 	return columnFilter(p.rules), nil
 }
diff --git a/util/table-filter/helper.go b/util/table-filter/helper.go
deleted file mode 100644
index 27085caa5f81c..0000000000000
--- a/util/table-filter/helper.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2021 PingCAP, Inc.
-//
-// Licensed 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.
-
-package filter
-
-import "reflect"
-
-// reverse replace the contents of a slice with the same elements but in reverse order.
-func reverse(items interface{}) {
-	n := reflect.ValueOf(items).Len()
-	swap := reflect.Swapper(items)
-	for i := n/2 - 1; i >= 0; i-- {
-		opp := n - 1 - i
-		swap(i, opp)
-	}
-}
diff --git a/util/table-filter/table_filter.go b/util/table-filter/table_filter.go
index e6f237eb0be81..8f9fc35ad34e9 100644
--- a/util/table-filter/table_filter.go
+++ b/util/table-filter/table_filter.go
@@ -15,6 +15,7 @@
 package filter
 
 import (
+	"slices"
 	"strings"
 )
 
@@ -48,7 +49,7 @@ func Parse(args []string) (Filter, error) {
 		}
 	}
 
-	reverse(p.rules)
+	slices.Reverse(p.rules)
 
 	return tableFilter(p.rules), nil
 }