remove compile warning

make `Options` optional :)
diff --git a/src/fabric_view_all_docs.erl b/src/fabric_view_all_docs.erl
index 034861f..52c0a77 100644
--- a/src/fabric_view_all_docs.erl
+++ b/src/fabric_view_all_docs.erl
@@ -50,7 +50,7 @@
     end;
 
 
-go(DbName, Options, QueryArgs, Callback, Acc0) ->
+go(DbName, _Options, QueryArgs, Callback, Acc0) ->
     #mrargs{
         direction = Dir,
         include_docs = IncludeDocs,