Temporarily remove WAF configuration

There are some complexities around defining regions on WAFs for CloudFront resources, and it's unclear from the docs where these apply to API gateways in the edge mode. Removing temporarily to get the API gateway deploying properly.

terraform/deployments/govuk-publishing-infrastructure/search_api_gateway.tf

@@ -62,58 +62,6 @@ resource "aws_api_gateway_base_path_mapping" "search_api_mapping" {
   api_id      = aws_api_gateway_rest_api.search_rest_api.id
 }
 
-# WAF settings
-resource "aws_wafv2_web_acl" "search_api_waf" {
-  name        = "search-api-waf"
-  description = "WAF for Search API with rate limiting"
-  provider    = aws.global_region
-  scope       = "CLOUDFRONT"
-
-  default_action {
-    allow {}
-  }
-
-  rule {
-    name     = "rate-limit-rule"
-    priority = 1
-    action {
-      block {}
-    }
-
-    statement {
-      rate_based_statement {
-        limit              = 100 # Limit 100 requests per IP in 5 minutes
-        aggregate_key_type = "IP"
-      }
-    }
-
-    visibility_config {
-      cloudwatch_metrics_enabled = true
-      metric_name                = "search-api-rate-limit-rule"
-      sampled_requests_enabled   = true
-    }
-  }
-
-  visibility_config {
-    cloudwatch_metrics_enabled = true
-    metric_name                = "search-api-waf"
-    sampled_requests_enabled   = true
-  }
-}
-
-resource "aws_wafv2_web_acl_association" "waf_association" {
-  resource_arn = aws_api_gateway_domain_name.search_api_domain.arn
-  web_acl_arn  = aws_wafv2_web_acl.search_api_waf.arn
-  provider     = aws.global_region
-}
-
-resource "aws_shield_protection" "search_api_shield" {
-  name         = "search-api-shield"
-  resource_arn = aws_api_gateway_rest_api.search_rest_api.execution_arn
-  provider     = aws.global_region
-}
-
-
 output "api_gateway_cname" {
   value       = aws_api_gateway_domain_name.search_api_domain.cloudfront_domain_name
   description = "CNAME to use in your DNS settings"