Remove ignoring of object not found on deletion

This is all handled properly at the caller sites

pkg/cloudprovider/providers/gce/gce_backendservice.go

@@ -18,7 +18,6 @@ package gce
 
 import (
 	"context"
-	"net/http"
 
 	computealpha "google.golang.org/api/compute/v0.alpha"
 	compute "google.golang.org/api/compute/v1"
@@ -66,11 +65,7 @@ func (gce *GCECloud) UpdateAlphaGlobalBackendService(bg *computealpha.BackendSer
 // DeleteGlobalBackendService deletes the given BackendService by name.
 func (gce *GCECloud) DeleteGlobalBackendService(name string) error {
 	mc := newBackendServiceMetricContext("delete", "")
-	err := gce.c.BackendServices().Delete(context.Background(), meta.GlobalKey(name))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		return nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.BackendServices().Delete(context.Background(), meta.GlobalKey(name)))
 }
 
 // CreateGlobalBackendService creates the given BackendService.
@@ -119,11 +114,7 @@ func (gce *GCECloud) UpdateRegionBackendService(bg *compute.BackendService, regi
 // DeleteRegionBackendService deletes the given BackendService by name.
 func (gce *GCECloud) DeleteRegionBackendService(name, region string) error {
 	mc := newBackendServiceMetricContext("delete", region)
-	err := gce.c.RegionBackendServices().Delete(context.Background(), meta.RegionalKey(name, region))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		err = nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.RegionBackendServices().Delete(context.Background(), meta.RegionalKey(name, region)))
 }
 
 // CreateRegionBackendService creates the given BackendService.

pkg/cloudprovider/providers/gce/gce_cert.go

@@ -18,7 +18,6 @@ package gce
 
 import (
 	"context"
-	"net/http"
 
 	compute "google.golang.org/api/compute/v1"
 
@@ -50,11 +49,7 @@ func (gce *GCECloud) CreateSslCertificate(sslCerts *compute.SslCertificate) (*co
 // DeleteSslCertificate deletes the SslCertificate by name.
 func (gce *GCECloud) DeleteSslCertificate(name string) error {
 	mc := newCertMetricContext("delete")
-	err := gce.c.SslCertificates().Delete(context.Background(), meta.GlobalKey(name))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		err = nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.SslCertificates().Delete(context.Background(), meta.GlobalKey(name)))
 }
 
 // ListSslCertificates lists all SslCertificates in the project.

pkg/cloudprovider/providers/gce/gce_targetproxy.go

@@ -18,7 +18,6 @@ package gce
 
 import (
 	"context"
-	"net/http"
 
 	compute "google.golang.org/api/compute/v1"
 
@@ -53,11 +52,7 @@ func (gce *GCECloud) SetUrlMapForTargetHttpProxy(proxy *compute.TargetHttpProxy,
 // DeleteTargetHttpProxy deletes the TargetHttpProxy by name.
 func (gce *GCECloud) DeleteTargetHttpProxy(name string) error {
 	mc := newTargetProxyMetricContext("delete")
-	err := gce.c.TargetHttpProxies().Delete(context.Background(), meta.GlobalKey(name))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		err = nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.TargetHttpProxies().Delete(context.Background(), meta.GlobalKey(name)))
 }
 
 // ListTargetHttpProxies lists all TargetHttpProxies in the project.
@@ -101,11 +96,7 @@ func (gce *GCECloud) SetSslCertificateForTargetHttpsProxy(proxy *compute.TargetH
 // DeleteTargetHttpsProxy deletes the TargetHttpsProxy by name.
 func (gce *GCECloud) DeleteTargetHttpsProxy(name string) error {
 	mc := newTargetProxyMetricContext("delete")
-	err := gce.c.TargetHttpsProxies().Delete(context.Background(), meta.GlobalKey(name))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		err = nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.TargetHttpsProxies().Delete(context.Background(), meta.GlobalKey(name)))
 }
 
 // ListTargetHttpsProxies lists all TargetHttpsProxies in the project.

pkg/cloudprovider/providers/gce/gce_urlmap.go

@@ -18,7 +18,6 @@ package gce
 
 import (
 	"context"
-	"net/http"
 
 	compute "google.golang.org/api/compute/v1"
 
@@ -52,11 +51,7 @@ func (gce *GCECloud) UpdateUrlMap(urlMap *compute.UrlMap) error {
 // DeleteUrlMap deletes a url map by name.
 func (gce *GCECloud) DeleteUrlMap(name string) error {
 	mc := newUrlMapMetricContext("delete")
-	err := gce.c.UrlMaps().Delete(context.Background(), meta.GlobalKey(name))
-	if isHTTPErrorCode(err, http.StatusNotFound) {
-		err = nil
-	}
-	return mc.Observe(err)
+	return mc.Observe(gce.c.UrlMaps().Delete(context.Background(), meta.GlobalKey(name)))
 }
 
 // ListUrlMaps lists all UrlMaps in the project.