Swift: Delete deprecated data flow api.

Author: aschackmull

swift/ql/lib/codeql/swift/dataflow/DataFlow.qll

@@ -7,5 +7,5 @@ module DataFlow {
   private import codeql.dataflow.DataFlow
   private import codeql.swift.elements.Location
   import DataFlowMake<Location, SwiftDataFlow>
-  import internal.DataFlowImpl1
+  import Public
 }

swift/ql/lib/codeql/swift/dataflow/TaintTracking.qll

@@ -3,11 +3,10 @@
  * global (inter-procedural) taint-tracking analyses.
  */
 module TaintTracking {
-  import codeql.swift.dataflow.internal.tainttracking1.TaintTrackingParameter::Public
+  import codeql.swift.dataflow.internal.TaintTrackingPublic
   private import codeql.swift.dataflow.internal.DataFlowImplSpecific
   private import codeql.swift.dataflow.internal.TaintTrackingImplSpecific
   private import codeql.dataflow.TaintTracking
   private import codeql.swift.elements.Location
   import TaintFlowMake<Location, SwiftDataFlow, SwiftTaintTracking>
-  import codeql.swift.dataflow.internal.tainttracking1.TaintTrackingImpl
 }