Unregister Caldera Forms shortcode button. See: https://calderaforms.com/doc/remove-caldera-forms-shortcode-button-post-editor/

remove-caldera-forms-shortcode-javascript.php

<?php
add_action( 'admin_enqueue_scripts', function() {
  wp_deregister_script('caldera-forms-shortcode-insert');
}, 15 );

unregister-caldera-forms-shortcode-button.php

<?php
add_action( 'plugins_loaded', function(){
		remove_action( 'media_buttons', array( 'Caldera_Forms_Admin', 'shortcode_insert_button' ), 11 );
}, 15 );

doesn't work for me...

@lucavlw,

Try this:

<?php
add_action( 'plugins_loaded', function(){
	remove_action( 'media_buttons', array( Caldera_Forms_Admin::get_instance(), 'shortcode_insert_button' ), 11 );
}, 15 );

None of them work for me, either.

What actually did work was changing the action from plugins_loaded to admin_head, like this:

add_action( 'admin_head', function(){
	remove_action( 'media_buttons', array( Caldera_Forms_Admin::get_instance(), 'shortcode_insert_button' ), 11 );
}, 15 );

WHERE do these snippets of code, or these php files go? A particular directory a particular file? Thanks.