Revert "Merge branch 'feature/support_gcc_v8.x' into 'master'"

This reverts merge request !1539

components/newlib/src/random.c

@@ -1,43 +0,0 @@
-// Copyright 2019-2020 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.
-
-#include <sys/random.h>
-#include <sys/param.h>
-#include <assert.h>
-#include <errno.h>
-#include <string.h>
-#include "esp_system.h"
-#include "esp_log.h"
-
-static const char *TAG = "RANDOM";
-
-ssize_t getrandom(void *buf, size_t buflen, unsigned int flags)
-{
-    // Flags are ignored because:
-    // - esp_random is non-blocking so it works for both blocking and non-blocking calls,
-    // - don't have opportunity so set som other source of entropy.
-
-    ESP_LOGD(TAG, "getrandom(buf=0x%x, buflen=%d, flags=%u)", (int) buf, buflen, flags);
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        ESP_LOGD(TAG, "getrandom returns -1 (EFAULT)");
-        return -1;
-    }
-
-    esp_fill_random(buf, buflen);
-
-    ESP_LOGD(TAG, "getrandom returns %d", buflen);
-    return buflen;
-}