[release/6.0] Move mono.mscordbi subset off the offical build

Backport of #81917

This isn't in use, so there's no need to build and ship it. Instead, this is being moved to the mono windows x64 public leg.

Author: Steve Pfister

eng/pipelines/runtime-official.yml

@@ -140,7 +140,7 @@ stages:
       # - windows_arm
       # - windows_arm64
       jobParameters:
-        buildArgs: -s mono+libs+host+packs+mono.mscordbi -c $(_BuildConfig)
+        buildArgs: -s mono+libs+host+packs -c $(_BuildConfig)
         nameSuffix: AllSubsets_Mono
         isOfficialBuild: ${{ variables.isOfficialBuild }}
         extraStepsTemplate: /eng/pipelines/common/upload-intermediate-artifacts-step.yml

eng/pipelines/runtime-staging.yml

@@ -288,7 +288,7 @@ jobs:
     jobParameters:
       testScope: innerloop
       nameSuffix: AllSubsets_Mono
-      buildArgs: -s mono+libs+host+packs+libs.tests -c $(_BuildConfig) /p:ArchiveTests=true
+      buildArgs: -s mono+mono.mscordbi+libs+host+packs+libs.tests -c $(_BuildConfig) /p:ArchiveTests=true
       timeoutInMinutes: 120
       condition: >-
         or(