Go: Delete deprecated data flow api.

Author: aschackmull

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

@@ -25,7 +25,7 @@ module DataFlow {
   private import semmle.go.dataflow.internal.DataFlowImplSpecific
   private import codeql.dataflow.DataFlow
   import DataFlowMake<Location, GoDataFlow>
-  import semmle.go.dataflow.internal.DataFlowImpl1
+  import Public
   import Properties
 }
 

go/ql/lib/semmle/go/dataflow/DataFlow2.qll

@@ -10,11 +10,10 @@ import semmle.go.dataflow.DataFlow
  * global (inter-procedural) taint-tracking analyses.
  */
 module TaintTracking {
-  import semmle.go.dataflow.internal.tainttracking1.TaintTrackingParameter::Public
+  import semmle.go.dataflow.internal.TaintTrackingUtil
   private import semmle.go.dataflow.internal.DataFlowImplSpecific
   private import semmle.go.dataflow.internal.TaintTrackingImplSpecific
   private import semmle.go.Locations
   private import codeql.dataflow.TaintTracking
   import TaintFlowMake<Location, GoDataFlow, GoTaintTracking>
-  import semmle.go.dataflow.internal.tainttracking1.TaintTrackingImpl
 }