daemon/libnetwork/types: remove TransportPort.Equal()

The `TransporPort` type is comparable; it doesn't have fields that
require special handling. It's defined as;

    // TransportPort represents a local Layer 4 endpoint
    type TransportPort struct {
        Proto Protocol
        Port  uint16
    }

where `Protocol` is an int (with a stringer interface);

    type Protocol uint8

So we can remove the `Equal` method, and simplify places where it's
compared.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

daemon/libnetwork/drivers/bridge/bridge_linux_test.go

@@ -158,15 +158,9 @@ func compareConnConfig(a, b *connectivityConfiguration) bool {
 	if a == nil || b == nil {
 		return false
 	}
-	if len(a.ExposedPorts) != len(b.ExposedPorts) ||
-		len(a.PortBindings) != len(b.PortBindings) {
+	if !slices.Equal(a.ExposedPorts, b.ExposedPorts) {
 		return false
 	}
-	for i := 0; i < len(a.ExposedPorts); i++ {
-		if !a.ExposedPorts[i].Equal(&b.ExposedPorts[i]) {
-			return false
-		}
-	}
 	for i := 0; i < len(a.PortBindings); i++ {
 		if !comparePortBinding(&a.PortBindings[i].PortBinding, &b.PortBindings[i].PortBinding) {
 			return false

daemon/libnetwork/drivers/bridge/internal/firewaller/stub.go

@@ -154,7 +154,7 @@ func matchLink(l stubFirewallerLink, parentIP, childIP netip.Addr, ports []types
 		return false
 	}
 	for i, p := range l.ports {
-		if !p.Equal(&ports[i]) {
+		if p != ports[i] {
 			return false
 		}
 	}

daemon/libnetwork/types/types.go

@@ -43,23 +43,6 @@ type TransportPort struct {
 	Port  uint16
 }
 
-// Equal checks if this instance of TransportPort is equal to the passed one
-func (t *TransportPort) Equal(o *TransportPort) bool {
-	if t == o {
-		return true
-	}
-
-	if o == nil {
-		return false
-	}
-
-	if t.Proto != o.Proto || t.Port != o.Port {
-		return false
-	}
-
-	return true
-}
-
 // String returns the TransportPort structure in string form
 func (t *TransportPort) String() string {
 	return fmt.Sprintf("%s/%d", t.Proto.String(), t.Port)