fix(security): Fix flash encryption example warning

    The Flash encryption example was giving a warning
    message related to the mount failure of the fatfs
    partition. The change fixes the behaviour to
    remove the warning

Author: AdityaHPatwardhan

examples/security/flash_encryption/main/flash_encrypt_fatfs.c

@@ -68,9 +68,6 @@ static size_t example_fatfs_partition_test(const esp_partition_t* partition, con
              (long unsigned int)partition->size
             );
 
-    ESP_LOGI(TAG, "Erasing partition");
-    ESP_ERROR_CHECK(esp_partition_erase_range(partition, 0, partition->size));
-
     ESP_LOGI(TAG, "Formatting FAT filesystem");
     err = esp_vfs_fat_spiflash_format_rw_wl(base_path, partition->label);
     if (err != ESP_OK) {