Remove the shim kernel crate

kernel/src/syscall/connect.rs

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: MPL-2.0
+
+use super::SyscallReturn;
+use crate::{
+    fs::file_table::FileDesc,
+    prelude::*,
+    util::net::{get_socket_from_fd, read_socket_addr_from_user},
+};
+
+pub fn sys_connect(
+    sockfd: FileDesc,
+    sockaddr_ptr: Vaddr,
+    addr_len: u32,
+    _ctx: &Context,
+) -> Result<SyscallReturn> {
+    let socket_addr = read_socket_addr_from_user(sockaddr_ptr, addr_len as _)?;
+    debug!("fd = {sockfd}, socket_addr = {socket_addr:?}");
+
+    let socket = get_socket_from_fd(sockfd)?;
+    socket.connect(socket_addr)?;
+    Ok(SyscallReturn::Return(0))
+}