To disable the trash for wordpress, edit your ./wp-config.php file and add the following line:
<span class="kw3">define</span><span class="br0">(</span><span class="st_h">'EMPTY_TRASH_DAYS'</span><span class="sy0">,</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy0">;</span>Code language: HTML, XML (xml)