fix: Remove test_send.py script to clean up unused code

Scripts/test_send.py

@@ -1,16 +0,0 @@
-import ujson
-# Reload discord module fresh and run the forced debug send once.
-try:
-    # ensure we use latest module on device
-    import sys
-    if "scripts.discord_webhook" in sys.modules:
-        del sys.modules["scripts.discord_webhook"]
-    import scripts.discord_webhook as d
-    # load config.json to populate webhook URL
-    with open("config.json", "r") as f:
-        cfg = ujson.load(f)
-    d.set_config(cfg)
-    print("Running debug_force_send() — may trigger ENOMEM, run once only")
-    d.debug_force_send("memory test")
-except Exception as e:
-    print("test_send error:", e)