Fix review comments

components/analytics-mgt/grafana-mgt/io.entgra.device.mgt.core.analytics.mgt.grafana.proxy.api/src/main/java/io/entgra/device/mgt/core/analytics/mgt/grafana/proxy/api/impl/util/GrafanaRequestHandlerUtil.java

@@ -129,14 +129,9 @@ public class GrafanaRequestHandlerUtil {
             log.error(errMsg);
             throw new RefererNotValid(errMsg);
         }
-        GrafanaConfiguration configuration;
+
-        try {
+        GrafanaConfiguration configuration = GrafanaConfigurationManager.getInstance().getGrafanaConfiguration();
-            configuration = GrafanaConfigurationManager.getInstance().getGrafanaConfiguration();
+
-        } catch (GrafanaManagementException e) {
-            String msg = "Error occurred while retrieving Grafana configuration";
-            log.error(msg, e);
-            throw e;
-        }
         boolean dashboardIntegrationConfig = configuration.getValidationConfig().getDashboardIntegration();
         GrafanaPanelIdentifier panelIdentifier = GrafanaUtil.getPanelIdentifierFromReferer(referer);
         if (!dashboardIntegrationConfig) {