[fd/aria2c] Remove duplicate --file-allocation=none (#8332)

Authored by: CrendKing

yt_dlp/downloader/external.py

@@ -335,7 +335,7 @@ def _make_cmd(self, tmpfilename, info_dict):
         cmd += ['--auto-file-renaming=false']
 
         if 'fragments' in info_dict:
-            cmd += ['--file-allocation=none', '--uri-selector=inorder']
+            cmd += ['--uri-selector=inorder']
             url_list_file = '%s.frag.urls' % tmpfilename
             url_list = []
             for frag_index, fragment in enumerate(info_dict['fragments']):