/* hide new media file and new textfile in filelilst-module (currently seems the only elements having that form-names */
form[name="editform2"] {
    display:none;
}
form[name="editform3"] {
    display:none;
}
/* Hide 'Add new media asset' on textmedia -> add media file -> popup */
form#typo3-addMediaForm {
    display: none;
}
/* hide icons that are empty (edit icon, if file is not editable - like an image or something */
.btn.btn-default.disabled {
    display: none;
}