Make reth-primitives leaner

[mattsse]

Describe the feature

the primitives crate accumulated some bloat, we should reduce this by:

# Implementation
- [ ] https://github.com/paradigmxyz/reth/issues/7905
- [ ] https://github.com/paradigmxyz/reth/issues/7907
- [ ] https://github.com/paradigmxyz/reth/issues/7906
- [ ] https://github.com/paradigmxyz/reth/issues/7929
- [ ] support no_std #5746
- [ ] ... 

Additional context

No response

[github-actions[bot]]

This issue is stale because it has been open for 21 days with no activity.