Allow lists without brackets

lib/DDG/GoodieRole/Parse/List.pm

@@ -51,8 +51,7 @@ sub remove_parens {
         $text =~ s/^$opening(.*?)$closing$/$1/;
         return $text;
     }
-    return $text if is_conj($text);
-    return;
+    return $text;
 }
 
 sub trim_whitespace {

t/00-roles/Parse/List.t

@@ -26,6 +26,7 @@ subtest parse_list => sub {
             '[' => ']',
             '{' => '}',
             '(' => ')',
+            ''  => '',
         );
         while (my ($open, $close) = each %brackets) {
             my $test_list = "${open}1, 2, 3$close";