Fix the config 'powerflex.connect.on.demand' description (#11926)

Author: sureshanaparti

plugins/storage/volume/scaleio/src/main/java/org/apache/cloudstack/storage/datastore/manager/ScaleIOSDCManager.java

@@ -28,7 +28,7 @@ public interface ScaleIOSDCManager {
     ConfigKey<Boolean> ConnectOnDemand = new ConfigKey<>("Storage",
             Boolean.class,
             "powerflex.connect.on.demand",
-            Boolean.FALSE.toString(),
+            Boolean.TRUE.toString(),
             "When true, connects PowerFlex client on Host when first Volume is mapped to SDC & client connections configured 'storage.pool.connected.clients.limit' are within the limit and disconnects when last Volume is unmapped from SDC; " +
                     "and When false, connects PowerFlex client on Host when host connects to storage pool & client connections configured 'storage.pool.connected.clients.limit' are within the limit and disconnects when host disconnects from storage pool & no volumes mapped to SDC.",
             Boolean.TRUE,

plugins/storage/volume/scaleio/src/main/java/org/apache/cloudstack/storage/datastore/manager/ScaleIOSDCManagerImpl.java

@@ -61,15 +61,6 @@
 public class ScaleIOSDCManagerImpl implements ScaleIOSDCManager, Configurable {
     private Logger logger = LogManager.getLogger(getClass());
 
-    static ConfigKey<Boolean> ConnectOnDemand = new ConfigKey<>("Storage",
-            Boolean.class,
-            "powerflex.connect.on.demand",
-            Boolean.TRUE.toString(),
-            "Connect PowerFlex client on Host when first Volume is mapped to SDC and disconnect when last Volume is unmapped from SDC," +
-                    " otherwise no action (that is connection remains in the same state whichever it is, connected or disconnected).",
-            Boolean.TRUE,
-            ConfigKey.Scope.Zone);
-
     @Inject
     AgentManager agentManager;
     @Inject