Replaced most of the usages of parallel_for with that of parallel_for_.

This should allow many algorithms to take advantage of more parallelization
technologies.

modules/objdetect/src/latentsvm.cpp

@@ -582,7 +582,6 @@ int searchObjectThresholdSomeComponents(const CvLSVMFeaturePyramid *H,
     // For each component perform searching
     for (i = 0; i < kComponents; i++)
     {
-#ifdef HAVE_TBB
         int error = searchObjectThreshold(H, &(filters[componentIndex]), kPartFilters[i],
             b[i], maxXBorder, maxYBorder, scoreThreshold,
             &(pointsArr[i]), &(levelsArr[i]), &(kPointsArr[i]),
@@ -598,13 +597,6 @@ int searchObjectThresholdSomeComponents(const CvLSVMFeaturePyramid *H,
             free(partsDisplacementArr);
             return LATENT_SVM_SEARCH_OBJECT_FAILED;
         }
-#else
-    (void)numThreads;
-        searchObjectThreshold(H, &(filters[componentIndex]), kPartFilters[i],
-            b[i], maxXBorder, maxYBorder, scoreThreshold,
-            &(pointsArr[i]), &(levelsArr[i]), &(kPointsArr[i]),
-            &(scoreArr[i]), &(partsDisplacementArr[i]));
-#endif
         estimateBoxes(pointsArr[i], levelsArr[i], kPointsArr[i],
             filters[componentIndex]->sizeX, filters[componentIndex]->sizeY, &(oppPointsArr[i]));
         componentIndex += (kPartFilters[i] + 1);