unignore a couple of tests

src/test/ui/or-patterns/macro-pat.rs

@@ -1,7 +1,5 @@
 // run-pass
 // edition:2021
-// ignore-test
-// FIXME(mark-i-m): enable this test again when 2021 machinery is available
 
 use Foo::*;
 

src/test/ui/or-patterns/or-patterns-syntactic-pass-2021.rs

@@ -1,9 +1,7 @@
 // Tests that :pat in macros in edition 2021 allows top-level or-patterns.
 
 // run-pass
-// ignore-test
 // edition:2021
-// FIXME(mark-i-m): unignore when 2021 machinery is in place.
 
 macro_rules! accept_pat {
     ($p:pat) => {};