skipover now implicit from deferrals/actionset; fix sql where logic with better correlation

lib/App/Netdisco/JobQueue/PostgreSQL.pm

@@ -40,10 +40,7 @@ sub _getsome {
 
   my $rs = $jobs->search({
     status => 'queued',
-    device => { '-not_in' => $jobs->correlate('skipped')->search({
-      backend => $fqdn,
-      -or => [{ deferrals => { '>=', 10 } },{ '-bool' => 'skipover' }],
-    }, { columns => 'device' })->as_query },
+    device => { '-not_in' => $jobs->skipped->columns('device')->as_query },
     %$where,
   }, { order_by => 'random()', rows => $num_slots });
 
@@ -130,7 +127,6 @@ sub jq_prime_skiplist {
         backend => $fqdn,
         device  => $_,
         actionset => $actionset{$_},
-        skipover => \'true',
       }} keys %actionset
     ]);
   });