Remove hacktricks-training banner from documentation

Removed the inclusion of hacktricks-training banner from the GCP privilege escalation documentation.

Author: AI-redteam

src/pentesting-cloud/gcp-security/gcp-privilege-escalation/gcp-cloud-workstations-privesc.md

@@ -112,4 +112,4 @@ nmap -sS -p 80,443,22 10.0.0.0/8
 * Assign a **custom service account** with minimal permissions to workstation configurations (e.g., `roles/source.reader`, `roles/artifactregistry.reader`)
 * Place the workstation project inside a **VPC Service Controls** perimeter
 
-{{#include ../../../banners/hacktricks-training.md}}
+