reset feature switch

Signed-off-by: Su <szhongna@amazon.com>

config/opensearch_dashboards.yml

@@ -231,7 +231,7 @@
 
 # Set the value of this setting to true to enable the experimental multiple data source
 # support feature. Use with caution.
-data_source.enabled: true
+#data_source.enabled: false
 # Set the value of these settings to customize crypto materials to encryption saved credentials
 # in data sources.
 #data_source.encryption.wrappingKeyName: 'changeme'