Enable USE_RANDOM_DEV_NONCE to generate random devNonce

[jeliasAcklio]

Hello,
I am using LoRaMac-node library v4.6.0 for my project. As I want to use the 1.0.4 LoRaWAN L2 stack with using random DevNonce for join request, I enable the flag USE_RANDOM_DEV_NONCE in LoRaMacCrypto.h, but it seems SecureElementRandomNumber function is not defined.

Is that normal ? In v4.4.7 L2 stack, this function is well defined, but no in latest versions.

Thank you for your help,

Regards

[dmeehan1968]

Removed in commit fde7db2.

Note that v1.0.4 requires that end devices use an incrementing DevNonce, and I suspect the function became redundant (and the conditional code is probably redundant and should have been removed also). @djaeckle authored the commit.