Fix cleaning out $TMPDIR between CI runs
Fix cleaning out $TMPDIR between CI runs

`ls "realm*"` looks for a file named "realm*" and doesn't do wildcard
expansion. Moving the star outside the quotes would be enough to fix this, but
using find + should be faster.

realm/realm-core,realm/realm-object-store,realm/realm-core,realm/realm-core,realm/realm-core,realm/realm-object-store,realm/realm-core,realm/realm-core,realm/realm-object-store,realm/realm-core