Hey Dake,
as you said I commented it out. The result is:
– The inline Styles are still there
– I have a Warning:Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'avia_style_generator::print_styles' was given in /home/www/web92/html/wp-test/wp-includes/plugin.php on line 496

So this can´t be the solution.

Thanks for for your snippet. This will show up the Icons BUT disable the effect. Can you tell me why your effect not working proper?

There are some useless inline styles e.g.:

<div class="textwidget"><div class="container" style="height: 90px; line-height: 90px;">
hallo											
</div> 

OK again: Here are the account details (please see private content)

… sorry, this URL should work:
http://www.awesomescreenshot.com/image/363124/79d447d7c66da527ec1fa2c0005c4b95

Hi Yigit,
my website is still in a local environment. Can you please write what I have to do?

… but your Styles are working! So the following function will work for me:

function ava_remove_video_element() {
echo '<style>
	#avia_builder .handlediv,
	#avia_builder .hndle.ui-sortable-handle,
	#avia_builder a.avia-hotkey-info,
	#avia_builder a.avia-expand-button.avia-attach-expand,
	#avia_builder .avia-template-save-button-container,
	#avia_builder .inside .shortcode_button_wrap { 
	    display: none; 
	}

	#poststuff .inside, #avia_builder .avia_meta_box {
	    margin: 0;
	}

	#avia_builder .avia-controll-bar {
	    top: 0;
	}
	</style>';
}

add_action('admin_head', 'ava_remove_video_element');

… thank´s!
OK I´ve copied the function in the function.php of my child theme – it´s not working!

… yes, I mentioned that in my second thread:
“I want hide the “Avia Layout Architekt”. Usually this should be possible in the WP Screen Options. But this also doesn´t work.”

So it´s not possible to disabling the “Avia Layout Builder” in the Screen Options.

… I can write some CSS like the following in avia-builder.css to hide the Layout Builder:

.shortcode_button_wrap {
  display: none!important;
}
.avia-template-save-button-container, .avia-expand-button, .postbox .hndle {
  display: none;
}

… but it´s not really nice an it´s not working in the child theme.

Hi Ismael,
thanks for the snippet – but it´s nit working!

For me it looks like a function . Therefore I put it in the Child´s function. With the result that I only see a white screen. I put it in the child´s Style as you said. With the result that nothing changed.

So what should I do? Your “Avia Layout Architekt” in the WP Option-bar doesn´t work. And yours and Elliots answer doesn´t work!