Plugin SDK: trim legacy helper exports

scripts/lib/plugin-sdk-entrypoints.json

@@ -47,34 +47,23 @@
   "msteams",
   "acpx",
   "bluebubbles",
-  "copilot-proxy",
-  "device-pair",
-  "diagnostics-otel",
-  "diffs",
   "feishu",
   "googlechat",
   "irc",
-  "llm-task",
   "lobster",
   "lazy-runtime",
   "matrix",
   "mattermost",
   "memory-core",
-  "memory-lancedb",
   "minimax-portal-auth",
   "nextcloud-talk",
   "nostr",
-  "open-prose",
-  "phone-control",
   "qwen-portal-auth",
   "synology-chat",
-  "talk-voice",
   "testing",
   "test-utils",
-  "thread-ownership",
   "tlon",
   "twitch",
-  "voice-call",
   "zalo",
   "zalouser",
   "account-helpers",