Drop the plan state from the store and the assignments: migration 0108 and placement-only assignments (release 6, issue 1945 B9, B4)

cmd/mesh-controller/build.go

@@ -150,16 +150,6 @@ func registerJudged(ctx context.Context, inv *inventory.Inventory, j takenBuild)
 			return notRegistered(err)
 		}
 	}
-	// **A build that failed its gate is never registered again** (novox/hq ADR 0236): an outcome heard
-	// twice, or replayed, would otherwise make the build a rollback put back what the module is again,
-	// and the next push would send it.
-	if failed, err := inv.GateFailed(ctx, kept.ID); err != nil {
-		return manifest, err
-	} else if failed {
-		return manifest, fmt.Errorf("%s built %s (%s), which failed its gate on its first machine and was put "+
-			"back: it is recorded and not registered again — a newer build is", j.by, manifest.Module,
-			short(j.commit))
-	}
 	// Then the module is judged against the list the mesh publishes, as every manifest read again is: one naming a
 	// key that list does not hold, or of another type, is refused here and never enters the catalogue.
 	if j.carried != nil {
@@ -283,8 +273,4 @@ type answers struct {
 	// applied, is not well: an assignment somebody made is not made yet, or will not be.
 	pending       []inventory.PendingAssignment
 	pendingUnread string
-	// lastSent is every machine's last recorded send, by name, with what the machine answered of it (novox/hq
-	// issue 485); lastSentUnread why it could not be read.
-	lastSent       map[string]inventory.Send
-	lastSentUnread string
 }