message: Remove id column from metadata table
diff: @@ -159,11 +159,10 @@ const _CREATE_SCHEMA: [&str; 12] = [
  const _CREATE_SCHEMA_MULTI: [&str; 14] = [
  "CREATE TABLE IF NOT EXISTS metadata (
  wallet_id VARCHAR(64) NOT NULL,
  - id BIGSERIAL NOT NULL,
  value BYTEA NOT NULL,
  - PRIMARY KEY(wallet_id, id)
  + PRIMARY KEY(wallet_id)
  )",
  - "CREATE UNIQUE INDEX IF NOT EXISTS ux_metadata_wallet_id_id ON metadata(wallet_id, id)",
  + "CREATE UNIQUE INDEX IF NOT EXISTS ux_metadata_wallet_id_id ON metadata(wallet_id)",
  "CREATE UNIQUE INDEX IF NOT EXISTS ux_metadata_values ON metadata(wallet_id, value)",
  "CREATE TABLE IF NOT EXISTS items(
  wallet_id VARCHAR(64) NOT NULL,
  