fix(nvs_flash): Remove the forceful selection of NVS_ENCRYPTION with flash encryption

- This change will introduce a breaking change for SoCs with the HMAC
  peripheral. Turning on flash encryption will no longer enable NVS
  encryption automatically.

Closes https://github.com/espressif/esp-idf/issues/12549

components/nvs_flash/test_apps/main/test_nvs.c

@@ -97,12 +97,6 @@ TEST_CASE("nvs_flash_init_partition_ptr() works correctly", "[nvs]")
 }
 
 #ifdef CONFIG_SOC_HMAC_SUPPORTED
-/* TODO: This test does not run in CI as the runner assigned has
- * flash encryption enabled by default. Enabling flash encryption
- * 'selects' NVS encryption; a new runner needs to be setup
- * for testing the HMAC NVS encryption scheme without flash encryption
- * enabled for this test.
- */
 TEST_CASE("test nvs encryption with HMAC-based scheme without toggling any config options", "[nvs_encr_hmac]")
 {
     nvs_handle_t handle;