[deprecated](external) remove deprecated hudi and iceberg external table (#27456)

The creation of hudi and iceberg table is disallowed since v1.2.
All these features are covered by hudi/iceberg catalog.
We should remove the code in v2.1

The PR mainly changes:
1. remove the code of hudi/iceberg external table.
2. remove code of iceberg database.
3. disallowed hive external table's creation.
4. disabled odbc,mysql,broker external table by default, and add FE config `disable_odbc_mysql_broker_table` to control it

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -924,12 +924,6 @@ public class Config extends ConfigBase {
     @ConfField
     public static long es_state_sync_interval_second = 10;
 
-    /**
-     * fe will create iceberg table every iceberg_table_creation_interval_second
-     */
-    @ConfField(mutable = true, masterOnly = true)
-    public static long iceberg_table_creation_interval_second = 10;
-
     /**
      * the factor of delay time before deciding to repair tablet.
      * if priority is VERY_HIGH, repair it immediately.
@@ -1505,14 +1499,6 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, masterOnly = true)
     public static long min_bytes_indicate_replica_too_large = 2 * 1024 * 1024 * 1024L;
 
-    /**
-     * If set to TRUE, the column definitions of iceberg table and the doris table must be consistent
-     * If set to FALSE, Doris only creates columns of supported data types.
-     * Default is true.
-     */
-    @ConfField(mutable = true, masterOnly = true)
-    public static boolean iceberg_table_creation_strict_mode = true;
-
     // statistics
     /*
      * the max unfinished statistics job number
@@ -1761,12 +1747,9 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, masterOnly = true)
     public static long max_backend_heartbeat_failure_tolerance_count = 1;
 
-    /**
-     * The iceberg and hudi table will be removed in v1.3
-     * Use multi catalog instead.
-     */
-    @ConfField(mutable = true, masterOnly = false)
-    public static boolean disable_iceberg_hudi_table = true;
+    @ConfField(mutable = true, masterOnly = false, description = {
+            "禁止创建odbc, mysql, broker类型的外表", "Disallow the creation of odbc, mysql, broker type external tables"})
+    public static boolean enable_odbc_mysql_broker_table = false;
 
     /**
      * The default connection timeout for hive metastore.
@@ -1872,15 +1855,6 @@ public class Config extends ConfigBase {
     @ConfField(mutable = false, varType = VariableAnnotation.EXPERIMENTAL)
     public static boolean enable_fqdn_mode = false;
 
-    /**
-     * enable use odbc table
-     */
-    @ConfField(mutable = true, masterOnly = true, description = {
-        "是否开启 ODBC 外表功能，默认关闭，ODBC 外表是淘汰的功能，请使用 JDBC Catalog",
-        "Whether to enable the ODBC appearance function, it is disabled by default,"
-            + " and the ODBC appearance is an obsolete feature. Please use the JDBC Catalog"})
-    public static boolean enable_odbc_table = false;
-
     /**
      * This is used whether to push down function to MYSQL in external Table with query sql
      * like odbc, jdbc for mysql table