Use the unbind parameter with sp_replication_path to remove the association between a bound object and a physical or logical replication path.
sp_replication_path dbname, 'unbind', "object_type", "object_name", {"path_name"|all}where:
sp_replication_path pdb, 'unbind', "table", "t1", "pdb_2"
sp_replication_path pdb, 'unbind', "table", "t1", "all"
sp_replication_path pdb, 'unbind', 'path', 'pdb_2', "all"