common: Fix some warnings related to clippy
warning: struct Params is never constructed
--> src/common.rs:9:12
|
9 | pub struct Params {
| ^^^^^^
|
= note: #[warn(dead_code)] (part of #[warn(unused)]) on by default
warning: struct Metadata is never constructed
--> src/common.rs:15:12
|
15 | pub struct Metadata {
| ^^^^^^^^
Signed-off-by: Shohei Maruyama cheat.sc.linux@outlook.com