remove deprecated guard_size_oblivious from stride sorting logic in exir. (#19516) #5676

Job	Run time
test-coreml / test-backend-macos (coreml, models) / macos-job	1h 26m 57s
test-coreml / test-backend-macos (coreml, operators) / macos-job	1h 26m 57s
test-coreml / test-backend-linux	-1s
test-coreml / package-golden-artifacts	0s
	2h 53m 53s

Provide feedback