Remove drift3 verifier code from drift_dev

It only really works in this workspace since drift3 is still unstable.

drift_dev 2.34.1

- Require analyzer version 13.
- Support latest `cli_util` versions.

sqlparser 0.44.5

- Support `ALTER TABLE ADD/DROP CONSTRAINT` statements.

drift 2.34.0

- Use `BEGIN IMMEDIATE` to start transactions.
- Make `TableInfo`'s `==` and `hashCode` take into account the database its attached to.

drift_dev 2.34.0

- Add `setup` callback to `validateDatabaseSchema` in `VerifySelf` extension.
- Fix generating code for table classes with a `$` in their name.
- Add the `use_sql_table_name_for_accessors` build option, naming the table
  getters on the database class after the table's SQL name instead of the Dart
  class name.

sqlparser 0.44.0

- Support `ALTER TABLE ALTER COLUMN` statements.

drift 2.33.0

- Add `length` extension for blob expressions.
- Add `SqlDialect.duckdb` for use with the `drift_duckdb` package.

drift_dev 2.33.0

- Drift files: Support features from SQLite version 3.53.

Prepare drift 2.32.1 release

Remove ignored devtools options file