pub unsafe extern "C" fn nvs_erase_key(
    _handle: u32,
    _key: *const crate::binary::c_types::c_char,
) -> crate::binary::c_types::c_int {
    todo!("nvs_erase_key")
}
**************************************************************************
Name: esp_nvs_erase_key

Description:
Read a block of data from file system

Input Parameters:
handle    - NVS handle
key       - Data index

Returned Value:
0 if success or -1 if fail

*************************************************************************
esp-wifi/src/wifi/os_adapter.rs