doc: remove useless 2.4 version information

docs/en/12-taos-sql/18-escape.md

@@ -15,11 +15,6 @@ title: Escape Characters
 |       `\%`       | % see below for details  |
 |       `\_`       | \_ see below for details |
 
-:::note
-Escape characters are available from version 2.4.0.4 .
-
-:::
-
 ## Restrictions
 
 1. If there are escape characters in identifiers (database name, table name, column name)

docs/en/14-reference/12-directory.md

@@ -29,11 +29,6 @@ All executable files of TDengine are in the _/usr/local/taos/bin_ directory by d
 - _set_core.sh_: script for setting up the system to generate core dump files for easy debugging
 - _taosd-dump-cfg.gdb_: script to facilitate debugging of taosd's gdb execution.
 
-:::note
-taosdump after version 2.4.0.0 require taosTools as a standalone installation. A new version of taosBenchmark is include in taosTools too.
-
-:::
-
 :::tip
 You can configure different data directories and log directories by modifying the system configuration file `taos.cfg`.