Merge "Revert "Don't use ProxyActivity when launching from SearchActionItemInfo intent"" into sc-dev am: 933d2536da am: 6700b07b95 am: 5181928d2e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15184812

Change-Id: I82a7d61dc72b414b988f276e96207db4afc9fc6e