refactor(backend): cope with already removed volumes

lib/Ravada/Domain/KVM.pm

@@ -339,7 +339,8 @@ sub _disk_device($self, $with_info=undef, $attribute=undef, $value=undef) {
 
         my ($boot_node) = $disk->findnodes('boot');
         my $info = {};
-        $info = $self->_volume_info($file) if $file && $device eq 'disk';
+        eval { $info = $self->_volume_info($file) if $file && $device eq 'disk' };
+        die $@ if $@ && $@ !~ /not found/i;
         $info->{device} = $device;
         if (!$info->{name} ) {
             if ($file) {

t/vm/35_remove2.t

@@ -45,6 +45,12 @@ sub test_remove_domain_volumes_already_gone {
         next if $file =~ /iso/;
         unlink $file or die "$! $file";
     }
+    $domain->storage_refresh() if $vm->type ne 'Void';
+    my @volumes = $domain->list_volumes_info();
+    for my $vol (@volumes) {
+        next if $vol->file =~ /\.iso$/;
+        ok(!-e $vol->file);
+    }
     eval { $domain->remove(user_admin) };
     is(''.$@,'',$vm->type);
 }