fix: remove header tab 'github', 'support' and 'community' due to private status of the repo

Author: alexxu-amd

src/rocm_docs/rocm_docs_theme/flavors/rocm-ds/header.jinja

@@ -25,13 +25,10 @@
 
 {%
 set nav_secondary_items = {
-    "GitHub": repo_url,
-    "Community": "https://github.com/ROCm/ROCm/discussions",
     "Blogs": "https://rocm.blogs.amd.com/",
     "ROCm™ Docs": "https://rocm.docs.amd.com",
     "ROCm Developer Hub": "https://www.amd.com/en/developer/resources/rocm-hub.html",
     "Instinct™ Docs": "https://instinct.docs.amd.com",
     "Infinity Hub": "https://www.amd.com/en/developer/resources/infinity-hub.html",
-    "Support": repo_url + "/issues/new/choose"
 }
 %}