Remove all code/tests to database drivers living in the directory DRUPAL_ROOT/drivers

Here is a start for this change. I removed some function that was designed for D8 and then mapped and adjusted all the functions that referred to Drupal\Driver. Some might be removable, but we have to decided on that because its also kind off test coverage.

Setting the version to D11 because 10.2 doesn't exist yet, we'll need to adjust this when the it's added.

10.2 will just be a tag off 11.x so as long as it works there it should be good.

Requeuing tests to make sure mysql and sqllite passes.

Refactor didn't seem to cause a regression. Think it would be good to get this in early for 10.2

Updated the title and the IS.

This could have gone in prior to 10.0.0 but I think it will need to wait until (actual) 11.x now.

Seems like postponed makes sense then.

Is Major version only how you find D11 tickets or is there another tag?

This is actionable now. Needs rebase and change to MR workflow.

I've added most of the patch to a merge request, however some of the code has changed already and some classes are gone.

I don't see any more tests that reference Drupal\Driver or Drupal\\Driver. But a check on it would be great.

I couldn't run the tests locally so I hope someone else could go through it.

As I see only 4 usages left

$ git grep database_drivers
core/tests/Drupal/KernelTests/Core/Database/SelectExtenderTest.php:122:    $additional_class_loader->addPsr4("Drupal\\core_fake\\Driver\\Database\\coreFake\\", __DIR__ . "/../../../../../tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFake");
core/tests/Drupal/KernelTests/Core/Database/SelectExtenderTest.php:123:    $additional_class_loader->addPsr4("Drupal\\core_fake\\Driver\\Database\\CoreFakeWithAllCustomClasses\\", __DIR__ . "/../../../../../tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses");
core/tests/Drupal/Tests/Core/Database/ConnectionTest.php:324:    $additional_class_loader->addPsr4("Drupal\\core_fake\\Driver\\Database\\CoreFake\\", __DIR__ . "/../../../../../tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFake");
core/tests/Drupal/Tests/Core/Database/ConnectionTest.php:325:    $additional_class_loader->addPsr4("Drupal\\core_fake\\Driver\\Database\\CoreFakeWithAllCustomClasses\\", __DIR__ . "/../../../../../tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses");

I wasn't sure about this issue so I confirmed with @daffie that this is still relevant. In the same message they mentioned that there are other higher priority issues than removing these tests.