4bddb0de6262fb4014d51baf8c9453eb45a3d0ef feat(wallet): add back TxBuilder finish() and sort_tx() with thread_rng() (Steve Myers)
45c0cae0a461232bf746375083e2005c5df5f913 fix(bdk): remove rand dependency (rustaceanrob)
Pull request description:
### Description
WIP towards removing `rand` fixes#871
The `rand` dependency was imported explicitly, but `rand` is also implicitly used through the `rand-std` feature flag on `bitcoin`.
### Notes to he reviewers
**Updated:**
`rand` was used primarily in two parts of `bdk`. Particularly in signing and in building a transaction.
Signing:
- Used implicitly in [`sign_schnorr`](https://docs.rs/bitcoin/latest/bitcoin/key/struct.Secp256k1.html#method.sign_schnorr), but nowhere else within `signer`.
Transaction ordering:
- Used to shuffle the inputs and outputs of a transaction, the default
- Used in the single random draw __as a fallback__ to branch and bound during coin selection. Branch and bound is the default coin selection option.
See conversation for proposed solutions.
### Changelog notice
- Remove the `rand` dependency from `bdk`
### Checklists
#### All Submissions:
* [x] I've signed all my commits
* [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
* [x] I ran `cargo fmt` and `cargo clippy` before committing
#### New Features:
* [x] I've added tests for the new feature
* [x] I've added docs for the new feature
#### Bugfixes:
* [x] This pull request breaks the existing API
* [x] I've added tests to reproduce the issue which are now passing
* [x] I'm linking the issue being fixed by this PR
ACKs for top commit:
ValuedMammal:
ACK 4bddb0de6262fb4014d51baf8c9453eb45a3d0ef
notmandatory:
ACK 4bddb0de6262fb4014d51baf8c9453eb45a3d0ef
Tree-SHA512: 662d9bcb1e02f8195d73df16789b8c2aba8ccd7b37ba713ebb0bfd19c66163acbcb6f266b64f88347cbb1f96b88c8a150581012cbf818d1dc8b4437b3e53fc62
6dab68d35b