Update TC_CADMIN_1_19.py

Resolving Linting errors

src/python_testing/TC_CADMIN_1_19.py

@@ -31,14 +31,11 @@
 #     quiet: true
 # === END CI TEST ARGUMENTS ===
 
-import logging
 import random
 
 import chip.clusters as Clusters
 from chip import ChipDeviceCtrl
-from chip.ChipDeviceCtrl import CommissioningParameters
 from chip.exceptions import ChipStackError
-from chip.native import PyChipError
 from chip.testing.matter_testing import MatterBaseTest, TestStep, async_test_body, default_matter_test_main
 from mobly import asserts