diff --git a/examples/common_components/led_strip/led_strip_rmt_ws2812.c b/examples/common_components/led_strip/led_strip_rmt_ws2812.c
index 345689b93a..bd9af41c39 100644
--- a/examples/common_components/led_strip/led_strip_rmt_ws2812.c
+++ b/examples/common_components/led_strip/led_strip_rmt_ws2812.c
@@ -1,16 +1,8 @@
-// Copyright 2019 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.
+/*
+ * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stdlib.h>
 #include <string.h>
 #include <sys/cdefs.h>
diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index 88a48f2230..02325c1d4e 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -2001,7 +2001,6 @@ examples/build_system/cmake/multi_config/main/multi_config_example_main.c
 examples/common_components/iperf/include/iperf.h
 examples/common_components/iperf/iperf.c
 examples/common_components/led_strip/include/led_strip.h
-examples/common_components/led_strip/led_strip_rmt_ws2812.c
 examples/common_components/protocol_examples_common/addr_from_stdin.c
 examples/common_components/protocol_examples_common/connect.c
 examples/common_components/protocol_examples_common/include/addr_from_stdin.h
diff --git a/tools/unit-test-app/components/test_utils/component.mk b/tools/unit-test-app/components/test_utils/component.mk
deleted file mode 100644
index 7dadbd17bc..0000000000
--- a/tools/unit-test-app/components/test_utils/component.mk
+++ /dev/null
@@ -1,18 +0,0 @@
-COMPONENT_PRIV_INCLUDEDIRS := private_include
-COMPONENT_ADD_INCLUDEDIRS : include
-COMPONENT_SRCDIRS := .
-COMPONENT_OBJS := ccomp_timer.o test_runner.o test_utils.o
-
-ifdef CONFIG_IDF_TARGET_ESP32
-COMPONENT_OBJS += ref_clock_impl_rmt_pcnt.o
-else
-COMPONENT_OBJS += ref_clock_impl_timergroup.o
-endif
-
-ifdef CONFIG_IDF_TARGET_ARCH_RISCV
-COMPONENT_OBJS += ccomp_timer_impl_riscv.o
-endif
-
-ifdef CONFIG_IDF_TARGET_ARCH_XTENSA
-COMPONENT_OBJS += ccomp_timer_impl_xtensa.o
-endif
diff --git a/tools/unit-test-app/components/test_utils/test/component.mk b/tools/unit-test-app/components/test_utils/test/component.mk
deleted file mode 100644
index 3cea87b93b..0000000000
--- a/tools/unit-test-app/components/test_utils/test/component.mk
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-#Component Makefile
-#
-
-COMPONENT_SRCDIRS += .
-
-COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive