Removing test using leading zeros when comparing hashes of IPv4 addre…

…sses

as net.ParseIP function rejects IPv4 addresses which contain decimal
components with leading zeros as of Go 1.17 (#222)

References: https://go.dev/doc/go1.17

internal/provider/hash_ip_string_test.go

@@ -7,14 +7,9 @@ import (
 )
 
 func TestHashIPString(t *testing.T) {
-	ipv4 := []string{"192.168.0.1", "192.168.000.001"}
 	ipv6 := []string{"fdd5:e282::dead:beef:cafe:babe", "FDD5:E282:0000:0000:DEAD:BEEF:CAFE:BABE"}
 	invalid := "not.an.ip.address"
 
-	if hashIPString(ipv4[0]) != hashIPString(ipv4[1]) {
-		t.Errorf("IPv4 values %s and %s should hash to the same value", ipv4[0], ipv4[1])
-	}
-
 	if hashIPString(ipv6[0]) != hashIPString(ipv6[1]) {
 		t.Errorf("IPv6 values %s and %s should hash to the same value", ipv6[0], ipv6[1])
 	}