[Azure External CI] Disable Azure CI on rocm-libraries (#4460)

- Deleting all pipeline trigger files tied to Azure External CI from
top-level and project-level.

---------

Co-authored-by: amd-hsivasun <hsivasun@amd.com>

.azuredevops/rocm-ci.yml

@@ -1,30 +0,0 @@
-resources:
-  repositories:
-  - repository: pipelines_repo
-    type: github
-    endpoint: ROCm
-    name: ROCm/ROCm
-
-variables:
-- group: common
-- template: /.azuredevops/variables-global.yml@pipelines_repo
-
-trigger:
-  batch: true
-  branches:
-    include:
-    - develop
-    - amd-develop
-  paths:
-    exclude:
-    - .github
-    - docs
-    - '.*.y*ml'
-    - '*.md'
-    - Jenkinsfile
-    - LICENSE
-
-pr: none
-
-jobs:
-  - template: ${{ variables.CI_COMPONENT_PATH }}/composable_kernel.yml@pipelines_repo