CLeanup.

docker/nginx/conf.d/include/proxy-cache-downloads

@@ -1,14 +1,5 @@
-#proxy_cache skynet; # cache name
-#proxy_cache_key $skylink_v1$path$arg_format$arg_attachment$arg_start$arg_end$http_range; # unique cache key
-#proxy_cache_min_uses 3; # cache after 3 uses
-#proxy_cache_valid 200 206 307 308 48h; # keep 200, 206, 307 and 308 responses valid for up to 2 days
 add_header X-Proxy-Cache $upstream_cache_status; # add response header to indicate cache hits and misses
 
-## map skyd env variable value to "1" for true and "0" for false (expected by proxy_no_cache)
-#set_by_lua_block $skyd_disk_cache_enabled {
-#    return os.getenv("SKYD_DISK_CACHE_ENABLED") == "true" and "1" or "0"
-#}
-
 # bypass - this will bypass cache hit on request (status BYPASS)
 # but still stores file in cache if cache conditions are met
 proxy_cache_bypass $cookie_nocache $arg_nocache "1";