MDL-83172 dml: Remove Oracle from LMS

lib/dml/pgsql_native_moodle_database.php

@@ -87,7 +87,7 @@ class pgsql_native_moodle_database extends moodle_database {
     /**
      * Returns database family type - describes SQL dialect
      * Note: can be used before connect()
-     * @return string db family name (mysql, postgres, mssql, oracle, etc.)
+     * @return string db family name (mysql, postgres, mssql, etc.)
      */
     public function get_dbfamily() {
         return 'postgres';
@@ -96,7 +96,7 @@ class pgsql_native_moodle_database extends moodle_database {
     /**
      * Returns more specific database driver type
      * Note: can be used before connect()
-     * @return string db type mysqli, pgsql, oci, mssql, sqlsrv
+     * @return string db type mysqli, pgsql, mssql, sqlsrv
      */
     protected function get_dbtype() {
         return 'pgsql';