TEST_MAPPING: Remove CtsWindowManagerDeviceTestCases & CtsActivityManagerDeviceTestCases from presubmit

These tests are flakey and have ATP GCLs so remove from presubmit.

This will maintain the same local atest flow should users want to run
locally.

Bug: 120143208
Test: None
Change-Id: I5a97c7a986b756164bb990b119c8441acffea1af
2 files changed