[automerge] Temporarily suspend checks of GC duration metrics for the Gen-CC GC. 2p: f914a7a0c9

Original change: https://googleplex-android-review.googlesource.com/c/platform/art/+/21749322

Bug: 271112044
Bug: 270391874
Change-Id: Ie213c4126c90239e29e58de36bf384c7d7977730
Merged-In: I8123dbe11b077c52a2859e0f2aeaf1d734ddc1ef