LiteParsedSearchStage was modified in https://github.com/10gen/mongo/pull/31158/files#diff-80dac42aad91c282f91f99d933aa81a20e27c4302c147802bc5c702945734313 in order to handle pipeline validation for search-on-views. However, now that pipeline validation is much more expansive (see `search_index_view_validation.cpp`) we should revert this file to what it was before the linked commit as the check no longer serves any purpose.