Revert "Disable K2Uast for lint" #26962

Job	Run time
build-cfg	1s
android-test-gmd-cfg	1s
build-cfg-check	1s
build (21)	2m 1s
build (35)	4m 47s
android-test-gmd-cfg-check	1s
android-test-gmd (23, aosp, nexus4)	1h 35m 19s
android-test-gmd (30, wear, wearoslargeround)	12m 31s
android-test-gmd (34, aosp, pixel2)	25m 25s
codecov-unit-test-upload (21)	6s
codecov-unit-coverage-upload (21)	6s
codecov-unit-test-upload (35)	6s
codecov-unit-coverage-upload (35)	6s
codecov-device-test-upload (23, aosp, nexus4)	9s
codecov-device-coverage-upload	0s
codecov-device-test-upload (34, aosp, pixel2)	5s
codecov-device-test-upload (30, wear, wearoslargeround)	6s
	2h 20m 51s

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