refactor(java-cli): drop dead no-arg GalaxyCommand ctors (Task 3 review)

clients/java/zb-mom-ww-mxgateway-cli/src/main/java/com/zb/mom/ww/mxgateway/cli/MxGatewayCli.java

@@ -372,10 +372,6 @@ public final class MxGatewayCli implements Callable<Integer> {
         @Option(names = "--json", description = "Write JSON output.")
         boolean json;
 
-        GalaxyCommand() {
-            this(new GrpcGalaxyClientFactory());
-        }
-
         GalaxyCommand(GalaxyClientFactory galaxyClientFactory) {
             this.galaxyClientFactory = galaxyClientFactory;
         }
@@ -390,9 +386,6 @@ public final class MxGatewayCli implements Callable<Integer> {
             aliases = {"galaxy-test"},
             description = "Calls GalaxyRepository.TestConnection.")
     static final class GalaxyTestConnectionCommand extends GalaxyCommand {
-        GalaxyTestConnectionCommand() {
-        }
-
         GalaxyTestConnectionCommand(GalaxyClientFactory galaxyClientFactory) {
             super(galaxyClientFactory);
         }
@@ -421,9 +414,6 @@ public final class MxGatewayCli implements Callable<Integer> {
             aliases = {"galaxy-deploy-time"},
             description = "Calls GalaxyRepository.GetLastDeployTime.")
     static final class GalaxyDeployTimeCommand extends GalaxyCommand {
-        GalaxyDeployTimeCommand() {
-        }
-
         GalaxyDeployTimeCommand(GalaxyClientFactory galaxyClientFactory) {
             super(galaxyClientFactory);
         }
@@ -452,9 +442,6 @@ public final class MxGatewayCli implements Callable<Integer> {
 
     @Command(name = "galaxy-discover", description = "Calls GalaxyRepository.DiscoverHierarchy.")
     static final class GalaxyDiscoverCommand extends GalaxyCommand {
-        GalaxyDiscoverCommand() {
-        }
-
         GalaxyDiscoverCommand(GalaxyClientFactory galaxyClientFactory) {
             super(galaxyClientFactory);
         }
@@ -494,9 +481,6 @@ public final class MxGatewayCli implements Callable<Integer> {
             name = "galaxy-browse",
             description = "Browses the Galaxy hierarchy via GalaxyRepository.BrowseChildren.")
     static final class GalaxyBrowseCommand extends GalaxyCommand {
-        GalaxyBrowseCommand() {
-        }
-
         GalaxyBrowseCommand(GalaxyClientFactory galaxyClientFactory) {
             super(galaxyClientFactory);
         }
@@ -761,9 +745,6 @@ public final class MxGatewayCli implements Callable<Integer> {
             name = "galaxy-watch",
             description = "Streams GalaxyRepository.WatchDeployEvents until cancelled.")
     static final class GalaxyWatchCommand extends GalaxyCommand {
-        GalaxyWatchCommand() {
-        }
-
         GalaxyWatchCommand(GalaxyClientFactory galaxyClientFactory) {
             super(galaxyClientFactory);
         }