Change Details

``` The whole "num" API and its libgmp-based implementation are now unused. Remove them. ``` Partial backport of [[https://github.com/bitcoin-core/secp256k1/pull/831 | secp256k1#831]]: https://github.com/bitcoin-core/secp256k1/pull/831/commits/20448b8d09a492afcfcae7721033c13a44a776fd#diff-f031673d9e7b4cbebd0f3c285bd4ffc2609c2b128a17be9e76cd3f76a79e8b72 Depends on D9407.

``` The whole "num" API and its libgmp-based implementation are now unused. Remove them. ``` Partial backport of [[https://github.com/bitcoin-core/secp256k1/pull/831 | secp256k1#831]]: https://github.com/bitcoin-core/secp256k1/pull/831/commits/1f233b3fa05eb29a744487e0682d925055fb0d4c Depends on D9407.

``` The whole "num" API and its libgmp-based implementation are now unused. Remove them. ``` Partial backport of [[https://github.com/bitcoin-core/secp256k1/pull/831 | secp256k1#831]]: https://github.com/bitcoin-core/secp256k1/pull/831/commits/20448b8d09a492afcfcae7721033c13a44a776fd#diff-f031673d9e7b4cbebd0f3c285bd4ffc2609c2b128a17be9e76cd3f76a79e8b721f233b3fa05eb29a744487e0682d925055fb0d4c Depends on D9407.