Remove dev and main branch from workflows. (#404)

* Remove `dev` and `main` branch from workflows.

Update links in documentation.

Signed-off-by: David Galiffi <David.Galiffi@amd.com>

* `amd-staging` -> `amd-mainline` in docs

Signed-off-by: Peter Jun Park <peter.park@amd.com>

---------

Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Signed-off-by: Peter Jun Park <peter.park@amd.com>
Co-authored-by: Peter Jun Park <peter.park@amd.com>

docs/conf.py

@@ -55,7 +55,7 @@ external_projects_current_project = "omniperf"
 
 # frequently used external resources
 extlinks = {
-    "dev-sample": ("https://github.com/ROCm/omniperf/blob/dev/sample/%s", "%s"),
+    "dev-sample": ("https://github.com/ROCm/omniperf/blob/amd-mainline/sample/%s", "%s"),
     "prod-page": (
         "https://www.amd.com/en/products/accelerators/instinct/%s.html",
         "%s",