gccrs: Remove unused error constructor and getter

These constructor for eroneous state are not in use anymore since we
replaced this error state with an optional in the parent nodes.

gcc/rust/ChangeLog:

	* ast/rust-expr.h: Remove error getter and constructor.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

diff --git a/gcc/rust/ast/rust-expr.h b/gcc/rust/ast/rust-expr.h
index 3ce78c643c735e2548c271ae0e8d7ec757d0fdd9..e6cfa2709f93c68e53905dac8ea17a8ce0632e0c 100644 (file)
--- a/gcc/rust/ast/rust-expr.h
+++ b/gcc/rust/ast/rust-expr.h
@@ -31,11 +31,6 @@ public:
   {}
 
   // Returns whether the LoopLabel is in an error state.
-  bool is_error () const { return label.is_error (); }
-
-  // Creates an error state LoopLabel.
-  static LoopLabel error () { return LoopLabel (Lifetime::error ()); }
-
   location_t get_locus () const { return locus; }
 
   Lifetime &get_lifetime () { return label; }