refactor(backend): removed debug

lib/Ravada/VM.pm

@@ -706,7 +706,6 @@ sub _data($self, $field, $value=undef) {
 
 sub _timed_data_cache($self) {
     return if !$self->{$FIELD_TIMEOUT} || time - $self->{$FIELD_TIMEOUT} < $CACHE_TIMEOUT;
-    warn "$$ deleting cache node ".localtime(time);
     my $name = $self->{_data}->{name};
     my $id = $self->{_data}->{id};
     delete $self->{_data};