trim ci pipeline (#1291)

* trim ci pipeline

Signed-off-by: guschmue <[email protected]>

* ups, no tf-1.15 for 3.8

Signed-off-by: guschmue <[email protected]>

Co-authored-by: TomWildenhain-Microsoft <[email protected]>

Author: guschmue

ci_build/azure_pipelines/pretrained_model_test.yml

@@ -4,24 +4,7 @@ jobs:
 - template: 'templates/job_generator.yml'
   parameters:
     python_versions: ['3.7']
-    tf_versions: ['1.15.2','2.3.0']
+    tf_versions: ['1.15.5','2.4.1']
     job:
       steps:
       - template: 'pretrained_model_test.yml'
-
-- template: 'templates/job_generator.yml'
-  parameters:
-    python_versions: [3.6']
-    tf_versions: ['1.14.0']
-    job:
-      steps:
-      - template: 'pretrained_model_test.yml'
-
-- template: 'templates/job_generator.yml'
-  parameters:
-    platforms: ['windows']
-    tf_versions: ['1.14.0']
-    job:
-      steps:
-      - template: 'pretrained_model_test.yml'
-