chore: remove old fixme (#1060)

* Remove FIXME

* Fix indentation

codex/node.nim

@@ -249,26 +249,18 @@ proc streamEntireDataset(
   if manifest.protected:
     # Retrieve, decode and save to the local store all EС groups
     proc erasureJob(): Future[?!void] {.async.} =
-      try:
-        # Spawn an erasure decoding job
-        let
-          erasure = Erasure.new(
-            self.networkStore,
-            leoEncoderProvider,
-            leoDecoderProvider,
-            self.taskpool)
-        without _ =? (await erasure.decode(manifest)), error:
-          error "Unable to erasure decode manifest", manifestCid, exc = error.msg
-          return failure(error)
-
-        return success()
-      # --------------------------------------------------------------------------
-      # FIXME this is a HACK so that the node does not crash during the workshop.
-      #   We should NOT catch Defect.
-      except Exception as exc:
-        trace "Exception decoding manifest", manifestCid, exc = exc.msg
-        return failure(exc.msg)
-      # --------------------------------------------------------------------------
+      # Spawn an erasure decoding job
+      let
+        erasure = Erasure.new(
+          self.networkStore,
+          leoEncoderProvider,
+          leoDecoderProvider,
+          self.taskpool)
+      without _ =? (await erasure.decode(manifest)), error:
+        error "Unable to erasure decode manifest", manifestCid, exc = error.msg
+        return failure(error)
+
+      return success()
 
     if err =? (await erasureJob()).errorOption:
       return failure(err)
@@ -428,15 +420,6 @@ proc setupRequest(
     trace "Unable to fetch manifest for cid"
     return failure error
 
-  # ----------------------------------------------------------------------------
-  # FIXME this is a BAND-AID to address
-  #   https://github.com/codex-storage/nim-codex/issues/852 temporarily for the
-  #   workshop. Remove this once we get that fixed.
-  if manifest.blocksCount.uint == ecK:
-    return failure("Cannot setup slots for a dataset with ecK == numBlocks. Please use a larger file or a different combination of `nodes` and `tolerance`.")
-  # ----------------------------------------------------------------------------
-
-
   # Erasure code the dataset according to provided parameters
   let
     erasure = Erasure.new(