Trim the catagories for the Windows experimental bots on the side-by-side console.

BUG=811828
BUG=811794
BUG=811791
BUG=811823
BUG=811871
BUG=811830
BUG=812108
BUG=811867
BUG=811817
BUG=811800
BUG=811826
BUG=811833
BUG=811805
BUG=811824
BUG=811793
BUG=811868
BUG=811783
BUG=811818
BUG=811788
BUG=811784

TBR=jbudorick@chormium.org

Change-Id: I30cb916dec2984d5deac4b38ad50425dcf075e97
Reviewed-on: https://chromium-review.googlesource.com/956698Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542134}

infra/config/global/luci-milo.cfg

@@ -2064,12 +2064,12 @@ consoles: {
   }
   builders: {
     name: "buildbucket/luci.chromium.ci/Win10 FYI Exp Release (NVIDIA)"
-    category: "GPU FYI|Windows|10|Nvidia|Experimental|Release|x86"
+    category: "GPU FYI|Windows|10|Nvidia|Exp|x86"
     short_name: "⚗️"
   }
   builders: {
     name: "buildbot/chromium.gpu.fyi/Win10 FYI Exp Release (NVIDIA)"
-    category: "GPU FYI|Windows|10|Nvidia|Experimental|Release|x86"
+    category: "GPU FYI|Windows|10|Nvidia|Exp|x86"
     short_name: "🎆"
   }
   builders: {