Remove legacy commands

Author: sailro

.yamato/CI.yml

@@ -101,11 +101,6 @@ run_vetting_test_project_{{ editor.version }}:
     PATH: /home/bokken/bin:/home/bokken/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/sbin:/home/bokken/.npm-global/bin::/home/bokken/npm-global/bin
     DISPLAY: ":0"
   commands:
-{% if platform.name == "linux" -%}
-    - pip install unity-downloader-cli --index-url https://artifactory.prd.it.unity3d.com/artifactory/api/pypi/pypi/simple --upgrade --user
-{% else -%}
-    - pip install unity-downloader-cli --index-url https://artifactory.prd.it.unity3d.com/artifactory/api/pypi/pypi/simple --upgrade
-{% endif -%}
     - npm config set prefix '~/npm-global'
     - npm install upm-ci-utils@latest -g --registry https://artifactory.prd.cds.internal.unity3d.com/artifactory/api/npm/upm-npm
     - unity-downloader-cli -u {{editor.version}} -c editor --fast --wait --published-only