Revert "Enable dex2oat swap test for CC on x86."

Is't still failing and the difference can be
rather huge:
    Expected: (native_alloc_2_) < (native_alloc_1_),
    actual: 379712 vs 248600

Bug: 29259363

This reverts commit 38f5663a970b633f08e144b4dff33633c51352ee.

Change-Id: Ie1d62fbba688aeadffb9d5aafd5b9cf632742ed6
2 files changed