Remove unneeded code for old Leptonica versions
Remove unneeded code for old Leptonica versions

Tesseract requires Leptonica 1.74 or newer,
so that code is no longer needed.

Signed-off-by: Stefan Weil <8d4c780fcfdc41841e5070f4c43da8958ba6aec0@weilnetz.de>

jbarlow83/tesseract,UB-Mannheim/tesseract,tesseract-ocr/tesseract,jbarlow83/tesseract,stweil/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,stweil/tesseract,amitdo/tesseract,amitdo/tesseract,amitdo/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,stweil/tesseract,tesseract-ocr/tesseract,jbarlow83/tesseract,stweil/tesseract,stweil/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,jbarlow83/tesseract,jbarlow83/tesseract,UB-Mannheim/tesseract