removed sandbox environment files

[ccampbell-fearless]

Related tickets

• cloud.gov resource reduction - Stage 1 #5566

Description of changes

• Removed terraform scripts for sandbox environment

[github-actions]

Terraform plan for meta

No changes. Your infrastructure matches the configuration.

No changes. Your infrastructure matches the configuration.

Terraform has compared your real infrastructure against your configuration
and found no differences, so no changes are needed.

📝 Plan generated in Pull Request Checks #928

[github-actions]

Terraform plan for dev

Plan: 1 to add, 0 to change, 1 to destroy.

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
-/+ destroy and then create replacement

Terraform will perform the following actions:

  # module.dev.module.cors.null_resource.cors_header must be replaced
-/+ resource "null_resource" "cors_header" {
!~      id       = "*******************" -> (known after apply)
!~      triggers = { # forces replacement
!~          "always_run" = "2026-05-13T17:32:18Z" -> (known after apply)
        }
    }

Plan: 1 to add, 0 to change, 1 to destroy.

📝 Plan generated in Pull Request Checks #928

[jperson1]

Reviewed in a group w/ a bunch of folks:

@RanyeM
@phildominguez-gsa
@LynnMHouston
@daryll
@annie-maria