vtkGenerateTimeSteps: Fix generate timesteps timesteps forward to input

Filters/Hybrid/vtkGenerateTimeSteps.cxx

@@ -103,16 +103,6 @@ int vtkGenerateTimeSteps::RequestInformation(vtkInformation* vtkNotUsed(request)
   return 1;
 }
 
-//------------------------------------------------------------------------------
-int vtkGenerateTimeSteps::RequestUpdateExtent(vtkInformation* vtkNotUsed(request),
-  vtkInformationVector** inputVector, vtkInformationVector* vtkNotUsed(outputVector))
-{
-  // Completely ignore update times and always request the first one if any
-  vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
-  inInfo->Set(vtkStreamingDemandDrivenPipeline::UPDATE_TIME_STEP(), 0);
-  return 1;
-}
-
 //------------------------------------------------------------------------------
 int vtkGenerateTimeSteps::RequestData(vtkInformation* vtkNotUsed(request),
   vtkInformationVector** inputVector, vtkInformationVector* outputVector)

Filters/Hybrid/vtkGenerateTimeSteps.h

@@ -18,7 +18,7 @@
  *
  * A vtkPassInputTypeAlgorithm that add timesteps during the request information
  * pass and just shallow copy its input to its output. Input timesteps are completely
- * ignored and the first timestep will be requested if any.
+ * ignored.
  */
 
 #ifndef vtkGenerateTimeSteps_h
@@ -78,7 +78,6 @@ protected:
 
   int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
   int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
-  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
   std::vector<double> TimeStepValues;