Revert "cmd/sketch: fix skaband MCP server config in container mode"

This reverts commit 741f12c123b4f591a35d345b0d8a30303b0d5190.
diff --git a/cmd/sketch/main.go b/cmd/sketch/main.go
index e01d59b..210db71 100644
--- a/cmd/sketch/main.go
+++ b/cmd/sketch/main.go
@@ -551,11 +551,6 @@
 		return err
 	}
 
-	// Add skaband MCP server configuration if skaband address is provided
-	if flags.skabandAddr != "" {
-		flags.mcpServers = append(flags.mcpServers, skabandMcpConfiguration(flags))
-	}
-
 	return setupAndRunAgent(ctx, flags, modelURL, apiKey, pubKey, true, logFile)
 }