codeintel: Remove bloom filters

Created by: efritz

#32908 disabled the bloom filters from the query path. We haven't seen a performance degredation in two months so we can assume it's safe to delete entirely.

Remove the uses of DEBUG_PRECISE_CODE_INTEL_BLOOM_FILTER_BAIL_OUT so that the != "" path is always taken. Simplify the resulting code and eliminate any paths that are now unreachable. The lib/codeintel/bloomfilter package and the filter column on the lsif_references table can also be removed.