Any testator may, by express provision in his will to that effect, exempt an executor from filing an inventory or making any report or final settlement, and when such provision is made, such inventory, report or final settlement shall not be required except in the following cases:
(1) When any executor, heir, legatee or other person interested in the estate makes affidavit showing his interest, and alleging that such interest is or will be endangered for want of security.
(2) When, in the opinion of the judge of the court having jurisdiction of the estate, the estate is likely to be wasted, to the prejudice of any person interested therein.