I can remove every single button from the toolbar but not this imagepicker button.
I tried to remove it with removePlugins: 'pickimage,image' and removeButtons: 'Image' plus a few more variations in the config where I could remove the other buttons.
Any hints or help is appreciated.
try this in javascript code.
<script type="text/javascript">
$(document).ready(function () {
CKEDITOR.config.removeButtons = 'Image';
});
</script>
Open link and Check it.