Revert "with_additional_fail_matcher is not going to work due to lifetimes with the new forced borrow."

This reverts commit 1d9fb42b6214bd922ac99ea23c1b80b756055128.

src/parser/nom_context.rs

@@ -98,15 +98,6 @@ impl<'r> ContextTree<'r, dyn OrgModeContext<'r>> {
             ErrorKind::ManyTill,
         )));
     }
-
-    pub fn with_additional_fail_matcher(
-        &'r self,
-        fail_matcher: &'r Matcher,
-    ) -> OrgModeContextTree<'r> {
-        self.with_additional_node(FailMatcherNode {
-            fail_matcher: ChainBehavior::AndParent(Some(fail_matcher)),
-        })
-    }
 }
 
 impl<'r> OrgModeContext<'r> for FailMatcherNode<'r> {