chore: remove unused imports

PiperOrigin-RevId: 459515628

google/api/billing.proto

@@ -16,8 +16,6 @@ syntax = "proto3";
 
 package google.api;
 
-import "google/api/metric.proto";
-
 option go_package = "google.golang.org/genproto/googleapis/api/serviceconfig;serviceconfig";
 option java_multiple_files = true;
 option java_outer_classname = "BillingProto";

google/api/service.proto

@@ -24,18 +24,15 @@ import "google/api/control.proto";
 import "google/api/documentation.proto";
 import "google/api/endpoint.proto";
 import "google/api/http.proto";
-import "google/api/label.proto";
 import "google/api/log.proto";
 import "google/api/logging.proto";
 import "google/api/metric.proto";
 import "google/api/monitored_resource.proto";
 import "google/api/monitoring.proto";
 import "google/api/quota.proto";
-import "google/api/resource.proto";
 import "google/api/source_info.proto";
 import "google/api/system_parameter.proto";
 import "google/api/usage.proto";
-import "google/protobuf/any.proto";
 import "google/protobuf/api.proto";
 import "google/protobuf/type.proto";
 import "google/protobuf/wrappers.proto";