remove temporary kv e2e check script

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

_e2e_kv_check.py

@@ -1,77 +0,0 @@
-"""E2E check: two real TorchNodeServers over HTTP, user's live topology.
-
-Head owns layers 0-20, tail owns 10-23 (overlapping shards, clamped to @21),
-exactly like the reported 2-node run. Compares cached vs stateless tps and
-verifies identical output text.
-"""
-import json
-import sys
-import time
-import urllib.request
-
-sys.path.insert(0, "packages/node")
-
-from meshnet_node.model_backend import TorchModelShard
-from meshnet_node.torch_server import TorchNodeServer
-
-MODEL = "Qwen/Qwen2.5-0.5B-Instruct"
-MAX_TOKENS = 60
-
-print("loading shards...", flush=True)
-head_backend = TorchModelShard(MODEL, 0, 20)
-tail_backend = TorchModelShard(MODEL, 10, 23)
-
-head = TorchNodeServer(backend=head_backend, tracker_mode=True)
-tail = TorchNodeServer(backend=tail_backend)
-head_port = head.start()
-tail_port = tail.start()
-print(f"head :{head_port} layers 0-20 | tail :{tail_port} layers 10-23", flush=True)
-
-
-def chat(label):
-    body = json.dumps({
-        "model": MODEL,
-        "messages": [{"role": "user", "content": "Count from 1 to 10, then say done."}],
-        "max_tokens": MAX_TOKENS,
-        "stream": False,
-    }).encode()
-    req = urllib.request.Request(
-        f"http://127.0.0.1:{head_port}/v1/chat/completions",
-        data=body,
-        headers={
-            "Content-Type": "application/json",
-            # tracker-injected route: tail continues at layer 21 (clamped)
-            "X-Meshnet-Route": json.dumps(
-                [{"endpoint": f"http://127.0.0.1:{tail_port}", "start_layer": 21}]
-            ),
-        },
-        method="POST",
-    )
-    started = time.monotonic()
-    with urllib.request.urlopen(req, timeout=600) as r:
-        resp = json.loads(r.read())
-    elapsed = time.monotonic() - started
-    text = resp["choices"][0]["message"]["content"]
-    tokens = resp.get("usage", {}).get("completion_tokens", 0)
-    print(f"\n[{label}] tokens={tokens} elapsed={elapsed:.2f}s "
-          f"tps={tokens / max(elapsed, 1e-6):.2f}", flush=True)
-    print(f"[{label}] text={text!r}", flush=True)
-    return text, tokens, elapsed
-
-
-try:
-    cached_text, ct, ce = chat("cached-warmup")  # first run pays model warmup
-    cached_text, ct, ce = chat("cached")
-    forwards_cached = tail.forward_chunk_count
-
-    head_backend.supports_kv_cache = False  # force legacy stateless path
-    stateless_text, st, se = chat("stateless")
-    forwards_stateless = tail.forward_chunk_count - forwards_cached
-
-    print(f"\ntail /forward calls: cached-run total={forwards_cached} "
-          f"stateless-run={forwards_stateless}", flush=True)
-    print(f"speedup: {(ct / ce) / max(st / se, 1e-9):.2f}x", flush=True)
-    print(f"outputs identical: {cached_text == stateless_text}", flush=True)
-finally:
-    head.stop()
-    tail.stop()