Revert "docs: add Browserbase as hosted remote CDP option"

This reverts commit c469657c97.

docs/tools/browser.md

@@ -196,87 +196,6 @@ Notes:
 - Replace `<BROWSERLESS_API_KEY>` with your real Browserless token.
 - Choose the region endpoint that matches your Browserless account (see their docs).
 
-## Browserbase (hosted remote CDP)
-
-[Browserbase](https://www.browserbase.com) is a cloud platform for running
-headless browsers. It provides remote CDP endpoints with built-in CAPTCHA
-solving, anti-bot stealth mode, and residential proxies. You can point an
-OpenClaw browser profile at a Browserbase session and authenticate with your
-API key.
-
-### Getting started
-
-1. **Sign up** at [browserbase.com/sign-up](https://www.browserbase.com/sign-up).
-   The free tier includes one concurrent browser session and 60 minutes of
-   monthly usage.
-2. **Find your credentials** on the
-   [Overview dashboard](https://www.browserbase.com/overview) — copy your
-   **API Key** and **Project ID** from the right-hand panel.
-3. **Create a session** using the Browserbase API (or their SDK) and retrieve
-   the CDP connect URL.
-
-### Configuration
-
-Browserbase sessions expose a WebSocket CDP endpoint. Point a profile at it:
-
-```json5
-{
-  browser: {
-    enabled: true,
-    defaultProfile: "browserbase",
-    remoteCdpTimeoutMs: 3000,
-    remoteCdpHandshakeTimeoutMs: 5000,
-    profiles: {
-      browserbase: {
-        cdpUrl: "wss://connect.browserbase.com?apiKey=<BROWSERBASE_API_KEY>",
-        color: "#F97316",
-      },
-    },
-  },
-}
-```
-
-If you create sessions through the Browserbase Sessions API, each session
-returns its own `connectUrl`. You can use that directly:
-
-```json5
-{
-  browser: {
-    profiles: {
-      browserbase: {
-        cdpUrl: "<SESSION_CONNECT_URL>",
-        color: "#F97316",
-      },
-    },
-  },
-}
-```
-
-### Environment variables
-
-Store your credentials in environment variables instead of committing them to
-config:
-
-```bash
-export BROWSERBASE_API_KEY="bb_live_..."
-export BROWSERBASE_PROJECT_ID="your-project-id"
-```
-
-Then reference them in your profile or create sessions programmatically.
-
-### Notes
-
-- Replace `<BROWSERBASE_API_KEY>` with your real Browserbase API key (starts
-  with `bb_live_`).
-- The free tier allows one concurrent session and 60 minutes per month. Paid
-  plans offer higher concurrency and usage limits.
-- Browserbase sessions include automatic CAPTCHA solving and anti-bot stealth
-  by default — no extra configuration needed.
-- Sessions can be monitored live at
-  `https://www.browserbase.com/sessions/<SESSION_ID>`.
-- See the [Browserbase docs](https://docs.browserbase.com) for full API
-  reference, SDK guides, and integration examples.
-
 ## Security
 
 Key ideas: