Function jsonb_remove_keys 

fn jsonb_remove_keys(
    v: JsonbRef<'_>,
    keys: ListRef<'_>,
    writer: &mut Builder,
) -> Result<()>

Deletes all matching keys or array elements from the left operand.

Examples:

query T
SELECT '{"a": "b", "c": "d"}'::jsonb - '{a,c}'::text[];
----
{}

query error cannot delete from scalar
SELECT '1'::jsonb - '{a,c}'::text[];