RT 58262 - fix warning messages from perl 5.12

git-svn-id: http://dev.catalyst.perl.org/repos/Config-General/trunk@90 be1acefe-a474-0410-9a34-9b3221f2030f

General/Interpolated.pm

@@ -124,7 +124,7 @@ sub _interpolate_hash {
   my ($this, $config) = @_;
 
   # bugfix rt.cpan.org#46184, moved code from _interpolate() to here.
-  if ($this->{InterPolateEnv} && defined(%ENV)) {
+  if ($this->{InterPolateEnv}) {
     # may lead to vulnerabilities, by default flag turned off
     for my $key (keys %ENV){
       $config->{__stack}->{$key}=$ENV{$key};