mimic-iv/concepts_postgres/postgres-functions: remove obsolete mimiciv_core

Author: schu

mimic-iv/concepts_postgres/postgres-functions.sql

@@ -3,7 +3,7 @@
 --  ???(column) -> PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY column)    (not sure how to do median in BQ)
 
 -- Set the search_path so all functions are generated on the mimiciv_derived schema
-SET search_path TO mimiciv_derived, mimiciv_core, mimiciv_hosp, mimiciv_icu, mimiciv_ed;
+SET search_path TO mimiciv_derived, mimiciv_hosp, mimiciv_icu, mimiciv_ed;
 
 CREATE OR REPLACE FUNCTION REGEXP_EXTRACT(str TEXT, pattern TEXT) RETURNS TEXT AS $$
 BEGIN