Remove unnecessary epsilon from PromiseType case.

Ms2ger · Ms2ger · commit 115f37ba6cd8 · 2019-07-02T14:30:46.000+02:00
diff --git a/index.bs b/index.bs
@@ -5419,7 +5419,7 @@ type.
     SingleType :
         DistinguishableType
         "any"
-        PromiseType ε
+        PromiseType
 </pre>
 
 <pre class="grammar" id="prod-UnionType">
