Remove dead lib code

include/zinnia/bio.h

@@ -1,18 +0,0 @@
-// SPDX-License-Identifier: ISC
-
-#pragma once
-
-#include <zinnia/mman.h>
-
-// TODO
-
-enum bio_type : uint8_t {
-    BLOCK_READ,
-    BLOCK_WRITE,
-};
-
-struct bio {
-    enum bio_type type;
-    uint32_t num_lbas;
-    uint64_t lba;
-};

include/zinnia/dpc.h

@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: ISC
-
-#pragma once
-
-#include <zinnia/atomic.h>
-#include <zinnia/list.h>
-#include <zinnia/percpu.h>
-
-struct dpc {
-    void (*callback)(struct dpc* dpc, void* data);
-    void* data;
-    atomic_bool inserted;
-
-    list_link(struct dpc*) link;
-};
-
-void dpc_dispatch();
-
-struct dpc_percpu {};
-extern struct dpc_percpu dpc_percpu_data;

include/zinnia/waitq.h

@@ -1,19 +0,0 @@
-// SPDX-License-Identifier: ISC
-
-#pragma once
-
-#include <zinnia/atomic.h>
-#include <zinnia/sched.h>
-#include <zinnia/spin.h>
-#include <zinnia/tailq.h>
-
-// A queue of tasks waiting for an event.
-struct waitq {
-    tailq_head(_Atomic(struct task)) waiters;
-    _Atomic(bool) woken;
-};
-
-void waitq_init(struct waitq* wq);
-void waitq_wait(struct waitq* wq);
-void waitq_wake_one(struct waitq* wq);
-void waitq_wake_all(struct waitq* wq);