Deleted lots of dead code, including PBLOB

git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@555 d0cd1f9f-072b-0410-8dd7-cf729c803f20

api/baseapi.cpp

@@ -54,7 +54,6 @@
 #include "imgs.h"
 #include "imgtiff.h"
 #include "makerow.h"
-#include "tstruct.h"
 #include "permute.h"
 #include "otsuthr.h"
 #include "osdetect.h"