Undo attempt at fixing IRCCloud avatar rendering

app/src/main/java/de/kuschku/quasseldroid/ui/chat/messages/DisplayMessage.kt

@@ -20,7 +20,7 @@ data class DisplayMessage(
 
   val tag = Tag(content.messageId, content.followUp, isSelected, isExpanded, isMarkerLine)
   val avatarUrl = content.sender.let {
-    Regex("~?[us]id(\\d+)").matchEntire(HostmaskHelper.user(it))?.groupValues?.lastOrNull()?.let {
+    Regex("[us]id(\\d+)").matchEntire(HostmaskHelper.user(it))?.groupValues?.lastOrNull()?.let {
       "https://www.irccloud.com/avatar-redirect/$it"
     }
   }

viewmodel/src/main/java/de/kuschku/quasseldroid/viewmodel/QuasselViewModel.kt

@@ -182,7 +182,7 @@ class QuasselViewModel : ViewModel() {
                       user.realName(),
                       user.isAway(),
                       network.support("CASEMAPPING"),
-                      Regex("~?[us]id(\\d+)").matchEntire(user.user())?.groupValues?.lastOrNull()?.let {
+                      Regex("[us]id(\\d+)").matchEntire(user.user())?.groupValues?.lastOrNull()?.let {
                         "https://www.irccloud.com/avatar-redirect/$it"
                       }
                     )