[HUD] Remove minihud page (#6984)

Reason: 
* I think people just use the main hud page now. Google analytics says
it's <1% of HUD traffic? I am not sure how much I trust this
* Remove a bunch of (sort of) dead code
* Not that important but it does free up some space in the header


<img width="1032" height="54" alt="image"
src="https://github.com/user-attachments/assets/c4e3386b-e6c8-441d-9b1d-86dae39fdef5"
/>

Author: clee2000

tools/torchci/check_alerts.py

@@ -261,11 +261,8 @@ def get_num_issues_with_label(owner: str, repo: str, label: str, from_date: str)
 
 
 def generate_failed_job_hud_link(failed_job: JobStatus) -> str:
-    # TODO: I don't think minihud is universal across multiple repositories
-    #       would be good to just replace this with something that is
-    hud_link = "https://hud.pytorch.org/minihud?name_filter=" + urllib.parse.quote(
-        failed_job.job_name
-    )
+    # TODO: Handle other branches/repos
+    hud_link = f"https://hud.pytorch.org/hud/pytorch/pytorch/main/1?per_page=100&name_filter={urllib.parse.quote(failed_job.job_name)}&mergeEphemeralLF=true"
     return f"[{failed_job.job_name}]({hud_link})"
 
 

torchci/components/layout/NavBar.tsx

@@ -219,11 +219,6 @@ function NavBar() {
               PyTorch CI HUD
             </Link>
           </li>
-          <li>
-            <Link prefetch={false} href="/minihud">
-              MiniHUD
-            </Link>
-          </li>
           <li>
             <Link prefetch={false} href="/hud/pytorch/pytorch/main">
               PyTorch

torchci/components/minihud.module.css

@@ -27,10 +27,6 @@ module.exports = {
         source: "/ci/:repoOwner/:repoName/:branch",
         destination: "/hud/:repoOwner/:repoName/:branch/1",
       },
-      {
-        source: "/minihud",
-        destination: "/minihud/pytorch/pytorch/main/1",
-      },
       {
         source: "/tts",
         destination: "/tts/pytorch/pytorch/main",