Middleware should not make table check on each request

[lekoala]

Module version(s) affected

3.x

Description

Currently, the middleware make a table check on each request. While not super expensive, it feels that this is really unecessary

Related issues:

silverstripe/silverstripe-framework#11181
tractorcow-farm/silverstripe-fluent#828

How to reproduce

Install debugbar
Install subsite module
Check the queries: a SHOW TABLES LIKE 'SubsiteDomain' happen in each query

Possible Solution

Don't make the check except on dev/build:
tractorcow-farm/silverstripe-fluent#831

Rely on the cached ClassInfo::hasTable instead which will get even better in the future
silverstripe/silverstripe-framework#11183

Additional Context

No response

Validations

• Check that there isn't already an issue that reports the same bug
• Double check that your reproduction steps work in a fresh installation of silverstripe/installer (with any code examples you've provided)

PRs

• ENH Use cached table list from ClassInfo #564

[GuySartorelli]

Pr is merged