Remove unused testresources import and related load_tests function from unittestadapter

Author: eleanorjboyd

build/test-requirements.txt

@@ -12,7 +12,6 @@ flask
 fastapi
 uvicorn
 django
-testresources
 testscenarios
 
 # Integrated TensorBoard tests

python_files/tests/unittestadapter/.data/test_scenarios/tests/__init__.py

@@ -1,15 +1,3 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-import os
-
-import testresources
-from testscenarios import generate_scenarios
-
-def load_tests(loader, tests, pattern):
-    this_dir = os.path.dirname(__file__)
-    mytests = loader.discover(start_dir=this_dir, pattern=pattern)
-    result = testresources.OptimisingTestSuite()
-    result.addTests(generate_scenarios(mytests))
-    result.addTests(generate_scenarios(tests))
-    return result