Revert "Update CHANGELOG.md for hashicorp#39561"

This reverts commit 652a182.

CHANGELOG.md

@@ -8,7 +8,6 @@ NOTES:
 
 FEATURES:
 
-* **New Resource:** `aws_backup_logically_air_gapped_vault` ([#39098](https://github.com/hashicorp/terraform-provider-aws/issues/39098))
 * **New Resource:** `aws_ec2_transit_gateway_default_route_table_association` ([#39496](https://github.com/hashicorp/terraform-provider-aws/issues/39496))
 * **New Resource:** `aws_ec2_transit_gateway_default_route_table_propagation` ([#39517](https://github.com/hashicorp/terraform-provider-aws/issues/39517))
 * **New Resource:** `aws_iam_group_policies_exclusive` ([#39554](https://github.com/hashicorp/terraform-provider-aws/issues/39554))
@@ -28,7 +27,6 @@ BUG FIXES:
 
 * resource/aws_bedrockagent_agent: Fix "Provider produced inconsistent result after apply" error on update due to `customer_encryption_key_arn` not being passed during update ([#39565](https://github.com/hashicorp/terraform-provider-aws/issues/39565))
 * resource/aws_bedrockagent_agent: Fix "Provider produced inconsistent result after apply" error on update due to `prompt_override_configuration` not being passed when not modified ([#39565](https://github.com/hashicorp/terraform-provider-aws/issues/39565))
-* resource/aws_bedrockagent_knowledge_base: Change `knowledge_base_configuration` and `storage_configuration` to [ForceNew](https://developer.hashicorp.com/terraform/plugin/sdkv2/schemas/schema-behaviors#forcenew) ([#39567](https://github.com/hashicorp/terraform-provider-aws/issues/39567))
 * resource/aws_ec2_transit_gateway_vpc_attachment: Remove default value for `security_group_referencing_support` argument and mark as Computed. This suppresses the diffs shown for resources created with v5.68.0 (or earlier) ([#39519](https://github.com/hashicorp/terraform-provider-aws/issues/39519))
 * resource/aws_opensearchserverless_lifecycle_policy: Fix "Provider produced inconsistent result after apply" error on update due to `policy_version` computed attribute changing ([#39528](https://github.com/hashicorp/terraform-provider-aws/issues/39528))
 * resource/aws_opensearchserverless_security_policy: Fix "Provider produced inconsistent result after apply" error on update due to `policy_version` computed attribute changing ([#39528](https://github.com/hashicorp/terraform-provider-aws/issues/39528))