Remove unused check_schema_version function from index_postgres.sql

We are not using this function since 57174ca4fa5414e69678f7b9b0d27fde692e393.

Change-Id: I5faccf18760cd74774b6ad336192bc1beaf3dca8
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
1 file changed