Don't break lines manually in chat messages.

This is no longer necessary since we use "pre-wrap" in the CSS.

static/galene.js

@@ -2955,23 +2955,6 @@ function formatLine(line) {
     return result;
 }
 
-/**
- * @param {string[]} lines
- * @returns {HTMLElement}
- */
-function formatLines(lines) {
-    let elts = [];
-    if(lines.length > 0)
-        elts = formatLine(lines[0]);
-    for(let i = 1; i < lines.length; i++) {
-        elts.push(document.createElement('br'));
-        elts = elts.concat(formatLine(lines[i]));
-    }
-    let elt = document.createElement('p');
-    elts.forEach(e => elt.appendChild(e));
-    return elt;
-}
-
 /**
  * @param {number} time
  * @returns {string}
@@ -3022,7 +3005,8 @@ function addToChatbox(peerId, dest, nick, time, privileged, history, kind, messa
         container.classList.add('message-private');
 
     if(kind !== 'me') {
-        let p = formatLines(message.toString().split('\n'));
+        let p = document.createElement('p');
+        p.textContent = message.toString();
         let doHeader = true;
         if(!peerId && !dest && !nick) {
             doHeader = false;