Don't maintain BuildInputs anymore

We don't need to record inputs per build anymore because we have
JobsetEvalInputs now.

src/lib/Hydra/Helper/AddBuilds.pm

@@ -596,37 +596,6 @@ sub checkBuild {
         } else {
             print STDERR "    added to queue as build ", $build->id, "\n";
         }
-
-        # Record which inputs where used.
-        my %inputs;
-        $inputs{$jobset->nixexprinput} = $nixExprInput;
-        foreach my $name (keys %{$inputInfo}) {
-            # Unconditionally include all inputs that were included in
-            # the Nix search path (through the -I flag).  We currently
-            # have no way to see which ones were actually used.
-            $inputs{$name} = $inputInfo->{$name}->[0]
-                if scalar @{$inputInfo->{$name}} == 1
-                   && defined $inputInfo->{$name}->[0]->{storePath};
-        }
-        foreach my $arg (@{$buildInfo->{arg}}) {
-            $inputs{$arg->{name}} = $inputInfo->{$arg->{name}}->[$arg->{altnr}]
-                || die "invalid input";
-        }
-
-        foreach my $name (keys %inputs) {
-            my $input = $inputs{$name};
-            $build->buildinputs_builds->create(
-                { name => $name
-                , type => $input->{type}
-                , uri => $input->{uri}
-                , revision => $input->{revision}
-                , value => $input->{value}
-                , emailresponsible => $input->{emailresponsible}
-                , dependency => $input->{id}
-                , path => $input->{storePath} || "" # !!! temporary hack
-                , sha256hash => $input->{sha256hash}
-                });
-        }
     });
 
     return $build;