Latest MSRV lint test has found some dead_code sections

[prestist]

Evaluate if they can be safely removed or continue to be ignored.

cargo clippy --all-targets -- -D warnings
    Checking afterburn v5.5.1 (/home/spresti/workspace/afterburn)
error: fields `fqdn` and `public_keys` are never read
  --> src/providers/ibmcloud_classic/mod.rs:49:9
   |
46 | pub struct MetaDataJSON {
   |            ------------ fields in this struct
...
49 |     pub fqdn: String,
   |         ^^^^
...
57 |     pub public_keys: HashMap<String, String>,
   |         ^^^^^^^^^^^
   |
   = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
   = note: `-D dead-code` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(dead_code)]`

error: fields `id` and `kind` are never read
  --> src/providers/ibmcloud_classic/mod.rs:81:9
   |
79 | pub struct NetNetworkJSON {
   |            -------------- fields in this struct
80 |     /// Unique network ID.
81 |     pub id: String,
   |         ^^
...
84 |     pub kind: String,
   |         ^^^^
   |
   = note: `NetNetworkJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis

error: field `availability_zone` is never read
  --> src/providers/openstack/configdrive.rs:43:9
   |
39 | pub struct MetadataOpenstackJSON {
   |            --------------------- field in this struct
...
43 |     pub availability_zone: Option<String>,
   |         ^^^^^^^^^^^^^^^^^
   |
   = note: `MetadataOpenstackJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis

error: field `fqdn` is never read
  --> src/providers/powervs/mod.rs:47:9
   |
44 | pub struct MetaDataJSON {
   |            ------------ field in this struct
...
47 |     pub fqdn: String,
   |         ^^^^
   |
   = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis

error: field `fqdn` is never read
  --> src/providers/ibmcloud_classic/mod.rs:49:9
   |
46 | pub struct MetaDataJSON {
   |            ------------ field in this struct
...
49 |     pub fqdn: String,
   |         ^^^^
   |
   = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
   = note: `-D dead-code` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(dead_code)]`

error: could not compile `afterburn` (bin "afterburn") due to 4 previous errors
warning: build failed, waiting for other jobs to finish...
error: could not compile `afterburn` (bin "afterburn" test) due to 3 previous errors