Remove address range functions

Should have been removed in cl/326791119
https://github.com/google/gvisor/commit/9a7b5830aa063895f67ca0fdf653a46906374613

PiperOrigin-RevId: 327074156

pkg/tcpip/stack/nic.go

@@ -19,7 +19,6 @@ import (
 	"math/rand"
 	"reflect"
 	"sort"
-	"strings"
 	"sync/atomic"
 
 	"gvisor.dev/gvisor/pkg/sync"
@@ -962,23 +961,6 @@ func (n *NIC) primaryAddress(proto tcpip.NetworkProtocolNumber) tcpip.AddressWit
 	return tcpip.AddressWithPrefix{}
 }
 
-// AddressRanges returns the Subnets associated with this NIC.
-func (n *NIC) AddressRanges() []tcpip.Subnet {
-	n.mu.RLock()
-	defer n.mu.RUnlock()
-	sns := make([]tcpip.Subnet, 0, len(n.mu.endpoints))
-	for nid := range n.mu.endpoints {
-		sn, err := tcpip.NewSubnet(nid.LocalAddress, tcpip.AddressMask(strings.Repeat("\xff", len(nid.LocalAddress))))
-		if err != nil {
-			// This should never happen as the mask has been carefully crafted to
-			// match the address.
-			panic("Invalid endpoint subnet: " + err.Error())
-		}
-		sns = append(sns, sn)
-	}
-	return sns
-}
-
 // insertPrimaryEndpointLocked adds r to n's primary endpoint list as required
 // by peb.
 //

pkg/tcpip/stack/stack.go

@@ -1102,19 +1102,6 @@ func (s *Stack) removeNICLocked(id tcpip.NICID) *tcpip.Error {
 	return nic.remove()
 }
 
-// NICAddressRanges returns a map of NICIDs to their associated subnets.
-func (s *Stack) NICAddressRanges() map[tcpip.NICID][]tcpip.Subnet {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-
-	nics := map[tcpip.NICID][]tcpip.Subnet{}
-
-	for id, nic := range s.nics {
-		nics[id] = append(nics[id], nic.AddressRanges()...)
-	}
-	return nics
-}
-
 // NICInfo captures the name and addresses assigned to a NIC.
 type NICInfo struct {
 	Name              string