Remove dead WS upload/download code

cista/fileio.py

@@ -1,10 +1,8 @@
-import asyncio
 import os
 import threading
 
 from cista import config
 from cista.util import filename
-from cista.util.asynclink import AsyncLink
 from cista.util.lrucache import LRUCache
 
 
@@ -63,34 +61,12 @@ class File:
 
 class FileServer:
     async def start(self):
-        self.alink = AsyncLink()
-        self.worker = asyncio.get_event_loop().run_in_executor(
-            None,
-            self.worker_thread,
-            self.alink.to_sync,
-        )
         self.cache = LRUCache(File, capacity=10, maxage=5.0)
         self.cache_lock = threading.Lock()
         self.file_locks: dict[str, threading.Lock] = {}
 
     async def stop(self):
-        await self.alink.stop()
-        await self.worker
-
-    def worker_thread(self, slink):
-        try:
-            for req in slink:
-                with req as (command, *args):
-                    if command == "upload":
-                        req.set_result(self.upload(*args))
-                    elif command == "upload_info":
-                        req.set_result(self.upload_info(*args))
-                    elif command == "download":
-                        req.set_result(self.download(*args))
-                    else:
-                        raise NotImplementedError(f"Unhandled {command=} {args}")
-        finally:
-            self.cache.close()
+        self.cache.close()
 
     @staticmethod
     def _stat_size(path):
@@ -99,15 +75,6 @@ class FileServer:
         except FileNotFoundError:
             return None
 
-    def upload(self, name, pos, data, file_size):
-        name = filename.sanitize(name)
-        with self.cache_lock:
-            f = self.cache[name]
-            lock = self.file_locks.setdefault(name, threading.Lock())
-        with lock:
-            f.write(pos, data, file_size=file_size)
-        return len(data)
-
     def upload_info(self, name, pos, data, file_size):
         name = filename.sanitize(name)
         with self.cache_lock:
@@ -123,11 +90,3 @@ class FileServer:
             "size_before": size_before,
             "size_after": size_after,
         }
-
-    def download(self, name, start, end):
-        name = filename.sanitize(name)
-        with self.cache_lock:
-            f = self.cache[name]
-            lock = self.file_locks.setdefault(name, threading.Lock())
-        with lock:
-            return f[start:end]