Fix(?) for some disabled ChooserActivityTest cases

These tests (testShortcutTarget{With,Without}ApplyAppLimits) are
currently disabled by @Ignore annotations, and I'm not re-enabling
them in this CL because I'm not sure that they won't flake -- I
just know that this was an easy (and understandable) fix when I
tried to run these tests locally, and I'd like to preserve that
fix for posterity.

Test: Re-enabled the tests and confirmed they passed only w/ fix
Bug: 208803748
Change-Id: I5268e3324d3cec9f6a72aee5de9ec1f06e45e987