cli/command/system: remove redundant nil-check (gosimple)

    cli/command/system/info.go:375:5: S1009: should omit nil check; len() for []github.com/docker/docker/api/types/system.NetworkAddressPool is defined as zero (gosimple)
        if info.DefaultAddressPools != nil && len(info.DefaultAddressPools) > 0 {
           ^

Signed-off-by: Sebastiaan van Stijn <[email protected]>
(cherry picked from commit cc1d7b7)
Signed-off-by: Sebastiaan van Stijn <[email protected]>

cli/command/system/info.go

@@ -372,7 +372,7 @@ func prettyPrintServerInfo(streams command.Streams, info *dockerInfo) []error {
 		fprintln(output, " Product License:", info.ProductLicense)
 	}
 
-	if info.DefaultAddressPools != nil && len(info.DefaultAddressPools) > 0 {
+	if len(info.DefaultAddressPools) > 0 {
 		fprintln(output, " Default Address Pools:")
 		for _, pool := range info.DefaultAddressPools {
 			fprintf(output, "   Base: %s, Size: %d\n", pool.Base, pool.Size)