Python: Delete deprecated data flow api.

Author: aschackmull

python/ql/lib/semmle/python/dataflow/new/DataFlow.qll

@@ -25,5 +25,5 @@ module DataFlow {
   private import internal.DataFlowImplSpecific
   private import codeql.dataflow.DataFlow
   import DataFlowMake<Location, PythonDataFlow>
-  import internal.DataFlowImpl1
+  import Public
 }

python/ql/lib/semmle/python/dataflow/new/DataFlow2.qll

@@ -15,10 +15,9 @@ private import python
  * global (inter-procedural) taint-tracking analyses.
  */
 module TaintTracking {
-  import semmle.python.dataflow.new.internal.tainttracking1.TaintTrackingParameter::Public
+  import semmle.python.dataflow.new.internal.TaintTrackingPublic
   private import semmle.python.dataflow.new.internal.DataFlowImplSpecific
   private import semmle.python.dataflow.new.internal.TaintTrackingImplSpecific
   private import codeql.dataflow.TaintTracking
   import TaintFlowMake<Location, PythonDataFlow, PythonTaintTracking>
-  import internal.tainttracking1.TaintTrackingImpl
 }