Revert "fixed last 2 bytes loss on save in szbedit (#1099)"

This reverts commit eaa305a2.

meaner3/utils/szbedit.cc

@@ -438,7 +438,7 @@ void SaveFile(char * path, int lines, int full, int avg)
 	//	towrite = lines * sizeof(short int);
 	//} else
 	// do not write average value
-	towrite = lines * sizeof(short int);
+	towrite = (lines - 1) * sizeof(short int);
 
 	if (write(fd, buf, towrite) != towrite ) {
 		char *str;