Clean capella (#4019)

## Issue Addressed

Cleans up all the remnants of 4844 in capella. This makes sure when 4844 is reviewed there is nothing we are missing because it got included here 

## Proposed Changes

drop a bomb on every 4844 thing 

## Additional Info

Merge process I did (locally) is as follows:
- squash merge to produce one commit
- in new branch off unstable with the squashed commit create a `git revert HEAD` commit
- merge that new branch onto 4844 with `--strategy ours`
- compare local 4844 to remote 4844 and make sure the diff is empty
- enjoy

Co-authored-by: Paul Hauner <paul@paulhauner.com>

Cargo.lock

@@ -6784,16 +6784,6 @@ dependencies = [
  "serde_derive",
 ]
 
-[[package]]
-name = "serde-big-array"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18b20e7752957bbe9661cff4e0bb04d183d0948cdab2ea58cdb9df36a61dfe62"
-dependencies = [
- "serde",
- "serde_derive",
-]
-
 [[package]]
 name = "serde_array_query"
 version = "0.1.0"
@@ -8301,7 +8291,6 @@ dependencies = [
  "rusqlite",
  "safe_arith",
  "serde",
- "serde-big-array",
  "serde_derive",
  "serde_json",
  "serde_with",