diff --git a/pkg/proxy/iptables/proxier.go b/pkg/proxy/iptables/proxier.go
index a46e4d5827e..4d64c17d06c 100644
--- a/pkg/proxy/iptables/proxier.go
+++ b/pkg/proxy/iptables/proxier.go
@@ -793,7 +793,6 @@ func (proxier *Proxier) syncProxyRules() {
 	start := time.Now()
 	defer func() {
 		metrics.SyncProxyRulesLatency.Observe(metrics.SinceInSeconds(start))
-		metrics.DeprecatedSyncProxyRulesLatency.Observe(metrics.SinceInMicroseconds(start))
 		klog.V(4).Infof("syncProxyRules took %v", time.Since(start))
 	}()
 
diff --git a/pkg/proxy/ipvs/proxier.go b/pkg/proxy/ipvs/proxier.go
index 2c2401ea2cb..26a26bb30d8 100644
--- a/pkg/proxy/ipvs/proxier.go
+++ b/pkg/proxy/ipvs/proxier.go
@@ -1020,7 +1020,6 @@ func (proxier *Proxier) syncProxyRules() {
 	start := time.Now()
 	defer func() {
 		metrics.SyncProxyRulesLatency.Observe(metrics.SinceInSeconds(start))
-		metrics.DeprecatedSyncProxyRulesLatency.Observe(metrics.SinceInMicroseconds(start))
 		klog.V(4).Infof("syncProxyRules took %v", time.Since(start))
 	}()
 
diff --git a/pkg/proxy/metrics/metrics.go b/pkg/proxy/metrics/metrics.go
index 8282091dd7c..20add8d3541 100644
--- a/pkg/proxy/metrics/metrics.go
+++ b/pkg/proxy/metrics/metrics.go
@@ -38,18 +38,6 @@ var (
 		},
 	)
 
-	// DeprecatedSyncProxyRulesLatency is the latency of one round of kube-proxy syncing proxy rules.
-	DeprecatedSyncProxyRulesLatency = metrics.NewHistogram(
-		&metrics.HistogramOpts{
-			Subsystem:         kubeProxySubsystem,
-			Name:              "sync_proxy_rules_latency_microseconds",
-			Help:              "SyncProxyRules latency in microseconds",
-			Buckets:           metrics.ExponentialBuckets(1000, 2, 15),
-			StabilityLevel:    metrics.ALPHA,
-			DeprecatedVersion: "1.14.0",
-		},
-	)
-
 	// SyncProxyRulesLastTimestamp is the timestamp proxy rules were last
 	// successfully synced.
 	SyncProxyRulesLastTimestamp = metrics.NewGauge(
@@ -145,7 +133,6 @@ var registerMetricsOnce sync.Once
 func RegisterMetrics() {
 	registerMetricsOnce.Do(func() {
 		legacyregistry.MustRegister(SyncProxyRulesLatency)
-		legacyregistry.MustRegister(DeprecatedSyncProxyRulesLatency)
 		legacyregistry.MustRegister(SyncProxyRulesLastTimestamp)
 		legacyregistry.MustRegister(NetworkProgrammingLatency)
 		legacyregistry.MustRegister(EndpointChangesPending)
diff --git a/pkg/proxy/winkernel/metrics.go b/pkg/proxy/winkernel/metrics.go
index 867ce3b7e26..d596210e20c 100644
--- a/pkg/proxy/winkernel/metrics.go
+++ b/pkg/proxy/winkernel/metrics.go
@@ -36,17 +36,6 @@ var (
 		},
 	)
 
-	DeprecatedSyncProxyRulesLatency = metrics.NewHistogram(
-		&metrics.HistogramOpts{
-			Subsystem:         kubeProxySubsystem,
-			Name:              "sync_proxy_rules_latency_microseconds",
-			Help:              "SyncProxyRules latency in microseconds",
-			Buckets:           metrics.ExponentialBuckets(1000, 2, 15),
-			StabilityLevel:    metrics.ALPHA,
-			DeprecatedVersion: "1.14.0",
-		},
-	)
-
 	// SyncProxyRulesLastTimestamp is the timestamp proxy rules were last
 	// successfully synced.
 	SyncProxyRulesLastTimestamp = metrics.NewGauge(
@@ -64,7 +53,6 @@ var registerMetricsOnce sync.Once
 func RegisterMetrics() {
 	registerMetricsOnce.Do(func() {
 		legacyregistry.MustRegister(SyncProxyRulesLatency)
-		legacyregistry.MustRegister(DeprecatedSyncProxyRulesLatency)
 		legacyregistry.MustRegister(SyncProxyRulesLastTimestamp)
 	})
 }
diff --git a/pkg/proxy/winkernel/proxier.go b/pkg/proxy/winkernel/proxier.go
index 27b929dccbc..d3423612c0e 100644
--- a/pkg/proxy/winkernel/proxier.go
+++ b/pkg/proxy/winkernel/proxier.go
@@ -1002,7 +1002,6 @@ func (proxier *Proxier) syncProxyRules() {
 	start := time.Now()
 	defer func() {
 		SyncProxyRulesLatency.Observe(metrics.SinceInSeconds(start))
-		DeprecatedSyncProxyRulesLatency.Observe(metrics.SinceInMicroseconds(start))
 		klog.V(4).Infof("syncProxyRules took %v", time.Since(start))
 	}()
 	// don't sync rules till we've received services and endpoints