Handle getters and setters in documentation template assist

crates/ide-assists/src/utils.rs

@@ -568,10 +568,6 @@ impl ReferenceConversion {
             | ReferenceConversionType::Result => format!("self.{}.as_ref()", field_name),
         }
     }
-
-    pub(crate) fn is_copy(&self) -> bool {
-        matches!(self.conversion, ReferenceConversionType::Copy)
-    }
 }
 
 // FIXME: It should return a new hir::Type, but currently constructing new types is too cumbersome