update README.md (#1145)

README.md

@@ -31,36 +31,6 @@ In order to build **powsybl-open-rao**, you need the following environment avail
 
 Open RAO needs a load flow implementation and a sensitivity analysis implementation at runtime, following the interfaces of **powsybl-core** which documentation is available [here](https://powsybl.readthedocs.io/projects/powsybl-core). Note that for obvious reasons, included performances, reliability and transparency, Open RAO uses [Powsybl Open Load Flow](https://github.com/powsybl/powsybl-open-loadflow) by default, but you can prefer you own implementation.
 
-### Running
-
-In order for Open RAO to run without error, you will need to configure your *itools* platform. *itools* is a command line interface
-provided by PowSyBl framework. 
-
-Two options are available:
-1.  First, you can use the one provided by Open RAO. It is saved in the *etc* directory of the installation, and is called *config.yml*.
-You just have to copy-paste it in **$HOME/.itools** directory. You can also use one of the provided network post-processor scripts 
-saved in the *etc* directory by copy-pasting them in the same directory and adding these lines to your *config.yml* file :
-
-```$yml
-import:
-  postProcessors: groovyScript
-
-groovy-post-processor:
-    script: $HOME/.itools/core-cc-ucte-postProcessor.groovy
-
-``` 
-
-2.  Expert users can also adapt it to their own needs.
-
-For using *itools*, enter on the command line:
-
-```bash
-cd <install-prefix>/bin
-./itools help
-```
-
-For more information about *itools*, do not hesitate to visit [PowSyBl documentation](https://www.powsybl.org/docs/).
-
 ### Quick tutorial
 If you prefer to get familiar with OpenRAO using a real example, take a look at this [tutorial](https://powsybl.readthedocs.io/projects/openrao/en/stable/tutorial.html).