Remove unused macro _TESS_FILE_BASENAME
Remove unused macro _TESS_FILE_BASENAME

This fixes a compiler warning from clang:

ccutil/platform.h:88:13: warning:
 macro name is a reserved identifier [-Wreserved-id-macro]
    #define _TESS_FILE_BASENAME_                                            \

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

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