[DO NOT MERGE] [Harness Separation] Delete harness from platform/cts and undo ag/4057682

* Harness code will be added to new repo platform/test/suite_harness.
Delete the code from platform/cts

* Fixed run_unit_tests.sh to refer to the new repo path
* Undo the trick to Android.mk (ag/4057682)

Bug: 78461075
Bug: 79201478
Bug: 79695450
Test: make cts -j32 WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY=true
TARGET_PRODUCT=aosp_arm64
Test: cts-tradefed run cts --compatibility:include-filter
CtsGestureTestCases
Test: cts/run_unit_tests.sh
Test: make gts -j32 WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY=true
TARGET_PRODUCT=aosp_arm64o

Change-Id: Iedde70e1180f149d9a461e91b4c8e0164dbb573a
280 files changed