Feat/remove cw20 from pool manager

[nseguias]

Description and Motivation

This PR removes all cw20 implementations from the pool manager. Once merged, the Pool Manager will no longer support CW20 tokens, it will only work using token factory tokens.

Related Issues

---

Checklist:

• [x] I have read Migaloo's contribution guidelines.
• [x] My pull request has a sound title and description (not something vague like Update index.md)
• [ ] All existing and new tests are passing.
• [ ] I updated/added relevant documentation.
• [x] The code is formatted properly cargo fmt --all --.
• [x] Clippy doesn't report any issues cargo clippy -- -D warnings.
• [x] I have regenerated the schemas if needed cargo schema.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 79.70149% with 68 lines in your changes are missing coverage. Please review.

Project coverage is 88.50%. Comparing base (e59999f) to head (b3cde00). Report is 2 commits behind head on release/v2_contracts.

Files	Patch %	Lines
...quidity_hub/pool-manager/src/tests/mock_querier.rs	0.00%	43 Missing :warning:
...acts/liquidity_hub/pool-manager/src/tests/suite.rs	69.23%	8 Missing :warning:
...ontracts/liquidity_hub/pool-manager/src/queries.rs	50.00%	5 Missing :warning:
packages/white-whale-std/src/pool_manager.rs	55.55%	4 Missing :warning:
...ts/liquidity_hub/pool-manager/src/swap/commands.rs	80.00%	3 Missing :warning:
...ty_hub/pool-manager/src/tests/integration_tests.rs	97.54%	3 Missing :warning:
...ntracts/liquidity_hub/pool-manager/src/contract.rs	83.33%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## release/v2_contracts #299 +/- ## ======================================================== - Coverage 88.50% 88.50% -0.01% ======================================================== Files 252 252 Lines 24029 23604 -425 ======================================================== - Hits 21267 20890 -377 + Misses 2762 2714 -48 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[kaimen-sano]

CI also needs to be resolved.