JS: Deprecate the Configuration.qll file

Author: asgerf

javascript/ql/lib/semmle/javascript/dataflow/Configuration.qll

@@ -67,6 +67,7 @@
  * Finally, we build `PathNode`s for all nodes that appear on a path
  * computed by `onPath`.
  */
+deprecated module;
 
 private import javascript
 private import internal.FlowSteps

javascript/ql/lib/semmle/javascript/dataflow/DataFlow.qll

@@ -1929,7 +1929,7 @@ module DataFlow {
   import Nodes
   import Sources
   import TypeInference
-  import Configuration
+  deprecated import Configuration
   import TypeTracking
   import AdditionalFlowSteps
   import internal.FunctionWrapperSteps