Remove code for old versions of Leptonica

Those versions are no longer supported.

Signed-off-by: Stefan Weil <[email protected]>

Author: stweil

ccmain/equationdetect.cpp

@@ -624,10 +624,6 @@ void EquationDetect::IdentifySeedParts() {
 }
 
 float EquationDetect::ComputeForegroundDensity(const TBOX& tbox) {
-#if LIBLEPT_MINOR_VERSION < 69 && LIBLEPT_MAJOR_VERSION <= 1
-  // This will disable the detector because no seed will be identified.
-  return 1.0f;
-#else
   Pix *pix_bi = lang_tesseract_->pix_binary();
   int pix_height = pixGetHeight(pix_bi);
   Box* box = boxCreate(tbox.left(), pix_height - tbox.top(),
@@ -639,7 +635,6 @@ float EquationDetect::ComputeForegroundDensity(const TBOX& tbox) {
   boxDestroy(&box);
 
   return fract;
-#endif
 }
 
 bool EquationDetect::CheckSeedFgDensity(const float density_th,

textord/linefind.cpp

@@ -306,10 +306,8 @@ void LineFinder::FindAndRemoveLines(int resolution, bool debug, Pix* pix,
   pixDestroy(&pix_non_hline);
   pixDestroy(&pix_intersections);
   if (pixa_display != NULL) {
-#if LIBLEPT_MINOR_VERSION >= 69 || LIBLEPT_MAJOR_VERSION > 1
     pixaConvertToPdf(pixa_display, resolution, 1.0f, 0, 0, "LineFinding",
                      "vhlinefinding.pdf");
-#endif
     pixaDestroy(&pixa_display);
   }
   PERF_COUNT_END