Remove copy token button form browsable api

Button was meant to allow quick bebugging in curl.
But it is easily abused for loading data into other applications.
This update removes the button.

src/dso_api/static/dso_api/dynamic_api/js/browsable_api.js

@@ -872,7 +872,6 @@ function setInfoBubble(element) {
     expiredText = `Exp:${minutesRemaining}min`;
     summary = `${token.preferred_username} ${isExpired?"Expired":expiredText} `;
     infoEl.innerHTML = `<div class="summary">${summary}</div>`
-    infoEl.innerHTML += `<div title="copy token to clipboard" class="copy-to-clipboard" onclick="navigator.clipboard.writeText('${valueEl.value.substr(7)}')">&#x1F4CB;</div>`
     infoEl.innerHTML += `<pre>${syntaxHighlight(JSON.stringify(token,null,4))}</pre>`;
     infoEl.classList.remove("hidden");
   } else {