list_apr10: remove four bad measurements
list_apr10: remove four bad measurements

track_intersections.C shows bad target images for these files.

The journal has following to say about these measurements:

15041001	unusable
15041002	No B3 B4 – for dispersion calculations
300410130	пустая мишень
300410131	пустая мишень. Пучок дефокусирован во 2f

veprbl/libepecur,veprbl/libepecur,veprbl/libepecur,veprbl/libepecur,veprbl/libepecur