Remove pre-test and GIT_SECRETS from baseline test (#12778)

* Remove pre-test and GIT_SECRETS from baseline test

Baseline test is to run PR tests multiple times to surface flaky issues.
The pre-test step is to find out if there is any importing dependency issue
between test scripts. This dependency issue only could happen with new
PRs. During baseline test, the dependency issue won't happen. It is unnecessary
for baseline test.

The GIT_SECRETS variable is not really used by baseline tests. This change also
deleted the reference to GIT_SECRETS variable group.

Signed-off-by: Xin Wang <[email protected]>

* Fix depends on conditions

---------

Signed-off-by: Xin Wang <[email protected]>

.azure-pipelines/baseline_test/baseline.test.mgmt.public.master.yml

@@ -12,73 +12,52 @@ schedules:
     always: true
 
 stages:
-- stage: Pre_test
-  variables:
-  - group: GIT_SECRETS
-  jobs:
-  - job: validate_test_cases
-    displayName: "Validate Test Cases"
-    timeoutInMinutes: 20
-    continueOnError: false
-    pool: ubuntu-20.04
-    steps:
-    - template: ../pytest-collect-only.yml
 
 - stage: Test_round_1
-  dependsOn:
-  - Pre_test
-  condition: succeeded('Pre_test')
   variables:
   - group: SONiC-Elastictest
   - name: inventory
     value: veos_vtb
   - name: testbed_file
     value: vtestbed.yaml
-  - group: GIT_SECRETS
   jobs:
   - template: baseline.test.template.yml
 
 - stage: Test_round_2
   dependsOn:
-  - Pre_test
   - Test_round_1
-  condition: and(succeeded('Pre_test'), succeededOrFailed('Test_round_1'))
+  condition: succeededOrFailed('Test_round_1')
   variables:
   - group: SONiC-Elastictest
   - name: inventory
     value: veos_vtb
   - name: testbed_file
     value: vtestbed.yaml
-  - group: GIT_SECRETS
   jobs:
   - template: baseline.test.template.yml
 
 - stage: Test_round_3
   dependsOn:
-  - Pre_test
   - Test_round_2
-  condition: and(succeeded('Pre_test'), succeededOrFailed('Test_round_2'))
+  condition: succeededOrFailed('Test_round_2')
   variables:
   - group: SONiC-Elastictest
   - name: inventory
     value: veos_vtb
   - name: testbed_file
     value: vtestbed.yaml
-  - group: GIT_SECRETS
   jobs:
   - template: baseline.test.template.yml
 
 - stage: Test_round_4
   dependsOn:
-  - Pre_test
   - Test_round_3
-  condition: and(succeeded('Pre_test'), succeededOrFailed('Test_round_3'))
+  condition: succeededOrFailed('Test_round_3')
   variables:
   - group: SONiC-Elastictest
   - name: inventory
     value: veos_vtb
   - name: testbed_file
     value: vtestbed.yaml
-  - group: GIT_SECRETS
   jobs:
   - template: baseline.test.template.yml