Revert RIT changes from release branch (#5416)

Author: rileykarson

.changelog/7507.txt

@@ -1,15 +1,12 @@
 ## 4.60.0 (Unreleased)
 
 FEATURES:
-* **New Data Source:** `google_compute_region_instance_template` ([#5388](https://github.com/hashicorp/terraform-provider-google-beta/pull/5388))
 * **New Resource:** `google_apigee_keystores_aliases_key_cert_file` ([#5386](https://github.com/hashicorp/terraform-provider-google-beta/pull/5386))
-* **New Resource:** `google_compute_region_instance_template` ([#5370](https://github.com/hashicorp/terraform-provider-google-beta/pull/5370))
 
 IMPROVEMENTS:
 * compute: added `address_type`, `network`, `network_tier`, `prefix_length`, `purpose`, `subnetwork` and `users` field for `google_compute_address` and `google_compute_global_address` datasource ([#5363](https://github.com/hashicorp/terraform-provider-google-beta/pull/5363))
 * compute: added `network_firewall_policy_enforcement_order` field to `google_compute_network` resource ([#5375](https://github.com/hashicorp/terraform-provider-google-beta/pull/5375))
 * compute: added output-only attribute `self_link_unique` for `google_compute_instance_template` to point to the unique id of the resource instead of its name ([#5384](https://github.com/hashicorp/terraform-provider-google-beta/pull/5384))
-* compute: added support for region instance template in`source_instance_template` field of `google_compute_instance_from_template` resource ([#5370](https://github.com/hashicorp/terraform-provider-google-beta/pull/5370))
 * container: added `stack_type` field to `google_container_cluster` resource ([#5364](https://github.com/hashicorp/terraform-provider-google-beta/pull/5364))
 * container: added `advanced_machine_features` field to `google_container_cluster` resource ([#5371](https://github.com/hashicorp/terraform-provider-google-beta/pull/5371))
 * networkservice: updated the max number of `host_rule` on `google_network_services_edge_cache_service` ([#5376](https://github.com/hashicorp/terraform-provider-google-beta/pull/5376))