ccutil: Remove unused variable
ccutil: Remove unused variable

This fixes a compiler warning:

ccutil/scanutils.cpp:284:7: warning:
 variable 'sign' set but not used [-Wunused-but-set-variable]

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

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