fix: remove spec environments

stages/repositories/spec.tf

@@ -4,28 +4,4 @@ module "specification" {
   description        = "This is the powerd6 specification, and it documents how the project behaves."
   topics             = ["specification", "documentation"]
   org_administrators = var.org_administrators
-}
-
-resource "github_repository_environment" "spec_preview" {
-  environment = "preview"
-  repository  = module.specification.name
-  deployment_branch_policy {
-    protected_branches     = true
-    custom_branch_policies = false
-  }
-}
-
-resource "github_repository_environment" "spec_release" {
-  environment = "release"
-  repository  = module.specification.name
-  deployment_branch_policy {
-    protected_branches     = false
-    custom_branch_policies = true
-  }
-}
-
-resource "github_repository_environment_deployment_policy" "spec_release_main" {
-  repository     = module.specification.name
-  environment    = github_repository_environment.spec_release.environment
-  branch_pattern = module.specification.main_branch
 }