removed ReflectInheriableVariable::clone_value_box

- replaced with `Reflect::try_clone_box`

fyrox-core/src/reflect/inherit.rs

@@ -42,9 +42,6 @@ pub trait ReflectInheritableVariable: Reflect {
     /// Returns true if value was modified.
     fn is_modified(&self) -> bool;
 
-    /// Clones self value.
-    fn clone_value_box(&self) -> Box<dyn Reflect>;
-
     /// Marks value as modified, so its value won't be overwritten during property inheritance.
     fn mark_modified(&mut self);
 

fyrox-core/src/variable.rs

@@ -561,11 +561,6 @@ where
         self.is_modified()
     }
 
-    #[inline]
-    fn clone_value_box(&self) -> Box<dyn Reflect> {
-        Box::new(self.value.clone())
-    }
-
     #[inline]
     fn mark_modified(&mut self) {
         self.mark_modified()