Remove obsolete code
Remove obsolete code

Pango versions older than 1.22.0 are not supported.
jbarlow83/tesseract,jbarlow83/tesseract,jbarlow83/tesseract,tesseract-ocr/tesseract,jbarlow83/tesseract,amitdo/tesseract,UB-Mannheim/tesseract,stweil/tesseract,stweil/tesseract,UB-Mannheim/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,UB-Mannheim/tesseract,amitdo/tesseract,amitdo/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,stweil/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,jbarlow83/tesseract,amitdo/tesseract,stweil/tesseract,tesseract-ocr/tesseract,stweil/tesseract