How to disable the image tool in RichTextEditor

Is it possible to disable the image tool in RichTextEditor, and if so how can this be done?

1 - Add the following content to a .css file, say custom-rte.css, under your /frontend/styles directory:

:host(.custom) [part~="toolbar-button-image"]
    display: none;

2 - Import the file with @CssImport and set the theme for vaadin-rich-text-editor as follows:

@CssImport(value = "./styles/custom-rte.css", themeFor = "vaadin-rich-text-editor")
public class SomeView extends SomeComponent { 

3 - Add the used CSS class name to the RichTextEditor:

    RichTextEditor richTextEditor = new RichTextEditor();