sampling_based_initial_split_policy_test.cpp was added as a test to verify the behavior of split point building strategy for resharding. Though it creates pipelines, it does not test behavior related to the query system directly. As such, this test should be moved to a more appropriate directory (for example, src/mongo/db/s/config so that it is next to src/mongo/db/s/config/initial_split_policy.h).