oci: Delete the kata oci spec

It's time to delete the kata oci spec implemented just
for kata. As we have already done align OCI Spec with
oci-spec-rs.

Fixes #9766

Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>

src/libs/Cargo.toml

@@ -3,7 +3,6 @@ members = [
     "kata-sys-util",
     "kata-types",
     "logging",
-    "oci",
     "runtime-spec",
     "protocols",
     "safe-path",

src/libs/oci/.gitignore

@@ -1 +0,0 @@
-Cargo.lock

src/libs/oci/Cargo.toml

@@ -1,12 +0,0 @@
-[package]
-name = "oci"
-version = "0.1.0"
-authors = ["The Kata Containers community <kata-dev@lists.katacontainers.io>"]
-edition = "2018"
-license = "Apache-2.0"
-
-[dependencies]
-serde = "1.0.131"
-serde_derive = "1.0.131"
-serde_json = "1.0.73"
-libc = "0.2.112"

src/libs/oci/src/serialize.rs

@@ -1,80 +0,0 @@
-// Copyright (c) 2019 Ant Financial
-//
-// SPDX-License-Identifier: Apache-2.0
-//
-
-use serde::{Deserialize, Serialize};
-
-use std::error;
-use std::fmt::{Display, Formatter, Result as FmtResult};
-use std::fs::File;
-use std::io;
-
-pub type Result<T> = std::result::Result<T, Error>;
-
-#[derive(Debug)]
-pub enum Error {
-    Io(io::Error),
-    Json(serde_json::Error),
-}
-
-impl Display for Error {
-    fn fmt(&self, f: &mut Formatter) -> FmtResult {
-        match *self {
-            Error::Io(ref e) => e.fmt(f),
-            Error::Json(ref e) => e.fmt(f),
-        }
-    }
-}
-
-impl error::Error for Error {
-    fn cause(&self) -> Option<&dyn error::Error> {
-        match *self {
-            Error::Io(ref e) => Some(e),
-            Error::Json(ref e) => Some(e),
-        }
-    }
-}
-
-impl From<io::Error> for Error {
-    fn from(e: io::Error) -> Error {
-        Error::Io(e)
-    }
-}
-
-impl From<serde_json::Error> for Error {
-    fn from(e: serde_json::Error) -> Error {
-        Error::Json(e)
-    }
-}
-
-pub fn to_writer<W, T>(o: &T, w: W) -> Result<()>
-where
-    W: io::Write,
-    T: Serialize,
-{
-    Ok(serde_json::to_writer(w, o)?)
-}
-
-pub fn serialize<T>(o: &T, path: &str) -> Result<()>
-where
-    T: Serialize,
-{
-    let f = File::create(path)?;
-    Ok(serde_json::to_writer(f, o)?)
-}
-
-pub fn to_string<T>(o: &T) -> Result<String>
-where
-    T: Serialize,
-{
-    Ok(serde_json::to_string(o)?)
-}
-
-pub fn deserialize<T>(path: &str) -> Result<T>
-where
-    for<'a> T: Deserialize<'a>,
-{
-    let f = File::open(path)?;
-    Ok(serde_json::from_reader(f)?)
-}