Remove unnecessary beta header from Anthropic provider

package.json

@@ -2,7 +2,7 @@
   "name": "claude-dev",
   "displayName": "Claude Dev",
   "description": "Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, and more with your permission every step of the way.",
-  "version": "1.3.42",
+  "version": "1.3.43",
   "icon": "icon.png",
   "engines": {
     "vscode": "^1.84.0"

src/api/anthropic.ts

@@ -60,7 +60,6 @@ export class AnthropicHandler implements ApiHandler {
 						tool_choice: { type: "auto" },
 					},
 					(() => {
-						// 8192 tokens: https://x.com/alexalbert__/status/1812921642143900036
 						// prompt caching: https://x.com/alexalbert__/status/1823751995901272068
 						// https://github.com/anthropics/anthropic-sdk-typescript?tab=readme-ov-file#default-headers
 						// https://github.com/anthropics/anthropic-sdk-typescript/commit/c920b77fc67bd839bfeb6716ceab9d7c9bbe7393
@@ -68,7 +67,7 @@ export class AnthropicHandler implements ApiHandler {
 							case "claude-3-5-sonnet-20240620":
 								return {
 									headers: {
-										"anthropic-beta": "prompt-caching-2024-07-31,max-tokens-3-5-sonnet-2024-07-15",
+										"anthropic-beta": "prompt-caching-2024-07-31",
 									},
 								}
 							case "claude-3-haiku-20240307":