meta/casgn.rb in mutant-0.9.8 vs meta/casgn.rb in mutant-0.9.9

@@ -3,26 +3,23 @@
 Mutant::Meta::Example.add :casgn do
   source 'A = true'
 
   mutation 'A__MUTANT__ = true'
   mutation 'A = false'
-  mutation 'A = nil'
   mutation 'remove_const :A'
 end
 
 Mutant::Meta::Example.add :casgn do
   source 'self::A = true'
 
   mutation 'self::A__MUTANT__ = true'
   mutation 'self::A = false'
-  mutation 'self::A = nil'
   mutation 'self.remove_const :A'
 end
 
 Mutant::Meta::Example.add :casgn do
   source 'A &&= true'
 
   singleton_mutations
   mutation 'A__MUTANT__ &&= true'
   mutation 'A &&= false'
-  mutation 'A &&= nil'
 end