diff --git a/components/esp_system/port/soc/esp32/intr.c b/components/esp_system/port/soc/esp32/intr.c
deleted file mode 100644
index 4d0dd0a799..0000000000
--- a/components/esp_system/port/soc/esp32/intr.c
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
-//
-// 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.
diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index e25ee34887..8a7c4c2f2b 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -491,7 +491,6 @@ components/esp_rom/patches/esp_rom_crc.c
 components/esp_system/include/esp_expression_with_stack.h
 components/esp_system/include/esp_freertos_hooks.h
 components/esp_system/include/esp_private/dbg_stubs.h
-components/esp_system/port/soc/esp32/intr.c
 components/esp_system/port/soc/esp32c3/apb_backup_dma.c
 components/esp_system/test_eh_frame_parser/esp_private/panic_internal.h
 components/esp_system/test_eh_frame_parser/linker.ld