Remove IRAM_ATTR from any function declarations

IRAM_ATTR expands to a unique section attribute. Applying it to both
declaration and definition results in a section conflict.

components/esp_system/include/esp_debug_helpers.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2019 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: 2015-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #pragma once
 
@@ -104,7 +96,7 @@ bool esp_backtrace_get_next_frame(esp_backtrace_frame_t *frame);
  *      - ESP_OK    Backtrace successfully printed to completion or to depth limit
  *      - ESP_FAIL  Backtrace is corrupted
  */
-esp_err_t IRAM_ATTR esp_backtrace_print_from_frame(int depth, const esp_backtrace_frame_t* frame, bool panic);
+esp_err_t esp_backtrace_print_from_frame(int depth, const esp_backtrace_frame_t* frame, bool panic);
 
 /**
  * @brief Print the backtrace of the current stack