grammar: Remove dangling closing parenthesis

ibuclaw · ibuclaw · commit 2ee84e51cfb6 · 2017-05-01T19:13:56.000+02:00
diff --git a/spec/grammar.dd b/spec/grammar.dd
@@ -1626,7 +1626,6 @@ $(GNAME LinkageType):
     $(D Pascal)
     $(D System)
     $(D Objective-C)
-)
 
 $(GNAME CppAggregateType):
     $(D class)
