Section 79.31. Discharge of guardian

(a) When a minor ward for whom a guardian has been appointed under the
  provisions  of  this  article  or  other  laws  of this state shall have
  attained his or her majority, and  if  incompetent,  shall  be  declared
  competent  by the administration and the court, and when any incompetent
  ward, not a minor, shall be declared competent  by  said  administration
  and  the court, the guardian shall upon making a satisfactory accounting
  be discharged upon a petition filed for that purpose. Provided, however,
  if a guardian has received other property in addition  to  the  benefits
  from  the administration and income from such benefits, his discharge as
  to such property shall, in the case of an incompetent ward, be  governed
  by the laws which govern the discharge of a committee of an incompetent,
  and  in  the  case  of  an  infant  ward,  by  the laws which govern the
  discharge of a guardian of an infant.