examples: remove nvs_flash_init from examples which do not use NVS

examples/get-started/blink/main/blink.c

@@ -9,8 +9,6 @@
 #include <stdio.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-#include "esp_system.h"
-#include "nvs_flash.h"
 #include "driver/gpio.h"
 #include "sdkconfig.h"
 
@@ -42,6 +40,5 @@ void blink_task(void *pvParameter)
 
 void app_main()
 {
-    nvs_flash_init();
     xTaskCreate(&blink_task, "blink_task", 512, NULL, 5, NULL);
 }

examples/get-started/hello_world/main/hello_world_main.c

@@ -10,7 +10,6 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_system.h"
-#include "nvs_flash.h"
 
 void hello_task(void *pvParameter)
 {
@@ -26,6 +25,5 @@ void hello_task(void *pvParameter)
 
 void app_main()
 {
-    nvs_flash_init();
     xTaskCreate(&hello_task, "hello_task", 2048, NULL, 5, NULL);
 }

examples/peripherals/i2s/main/app_main.c

@@ -11,8 +11,6 @@
 #include <stdio.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-#include "esp_system.h"
-#include "nvs_flash.h"
 #include "driver/i2s.h"
 #include <math.h>
 
@@ -48,7 +46,6 @@ void app_main()
         .data_in_num = -1                                                       //Not used
     };
 
-    nvs_flash_init();
     i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
     i2s_set_pin(I2S_NUM, &pin_config);
 

examples/peripherals/touch_pad_interrupt/main/tp_interrupt_main.c

@@ -9,8 +9,6 @@
 #include <stdio.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-#include "esp_system.h"
-#include "nvs_flash.h"
 #include "esp_log.h"
 
 #include "driver/touch_pad.h"
@@ -95,9 +93,6 @@ static void touch_pad_rtc_intr(void * arg)
 
 void app_main()
 {
-    ESP_LOGI(TAG, "Starting");
-    nvs_flash_init();
-
     // Initialize touch pad peripheral
     ESP_LOGI(TAG, "Initializing touch pad");
     touch_pad_init();

examples/peripherals/touch_pad_read/main/tp_read_main.c

@@ -9,8 +9,6 @@
 #include <stdio.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-#include "esp_system.h"
-#include "nvs_flash.h"
 
 #include "driver/touch_pad.h"
 
@@ -34,8 +32,6 @@ void touch_pad_read_task(void *pvParameter)
 
 void app_main()
 {
-    nvs_flash_init();
-
     // Initialize touch pad peripheral
     touch_pad_init();