[MASIC] [azp] remove official-build-multi-asic.yml (#12973)

remove ..multi-asic.yml file as original purpose was to test stability before multi_asic PR check were brought up

.azure-pipelines/official-build-multi-asic.yml

@@ -1,51 +0,0 @@
-# Starter pipeline
-# Start with a minimal pipeline that you can customize to build and deploy your code.
-# Add steps that build, run tests, deploy, and more:
-# https://aka.ms/yaml
-
-schedules:
-- cron: "0 18 * * Sun,Wed,Fri"
-  displayName: "Alternate day build"
-  branches:
-    include:
-    - master
-  always: true
-
-trigger: none
-pr: none
-
-stages:
-- stage: Build
-  pool: sonicbld
-  variables:
-  - template: azure-pipelines-repd-build-variables.yml
-  - name: CACHE_MODE
-    value: wcache
-  jobs:
-  - template: azure-pipelines-build.yml
-    parameters:
-      buildOptions: 'USERNAME=admin SONIC_BUILD_JOBS=$(nproc) BUILD_MULTIASIC_KVM=y ${{ variables.VERSION_CONTROL_OPTIONS }}'
-      jobGroups:
-      - name: vs
-
-- stage: Test
-  variables:
-  - name: inventory
-    value: veos_vtb
-  - name: testbed_file
-    value: vtestbed.csv
-
-  jobs:
-  - job:
-    pool: sonictest-ma
-    displayName: "kvmtest-multi-asic-t1-lag"
-    timeoutInMinutes: 240
-
-    steps:
-    - template: run-test-template.yml
-      parameters:
-        dut: vlab-08
-        tbname: vms-kvm-four-asic-t1-lag
-        ptf_name: ptf_vms6-4
-        tbtype: multi-asic-t1-lag
-        image: sonic-4asic-vs.img.gz