review: Make call intent not optional in content

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/timeline/item/event/TimelineEventContentMapper.kt

@@ -110,7 +110,7 @@ class TimelineEventContentMapper(
                         }
                         is MsgLikeKind.LiveLocation -> {
                             // Live location messages are a special kind of message that we want to treat as unknown content for now
-                             UnknownContent
+                            UnknownContent
                         }
                         is MsgLikeKind.Other -> UnknownContent
                     }
@@ -139,12 +139,10 @@ class TimelineEventContentMapper(
                 }
                 is TimelineItemContent.CallInvite -> LegacyCallInviteContent
                 is TimelineItemContent.RtcNotification -> CallNotifyContent(
-                    it.callIntent?.let { intentString ->
-                        if (intentString == "audio") {
-                            CallIntent.AUDIO
-                        } else {
-                            CallIntent.VIDEO
-                        }
+                    callIntent = if (it.callIntent == "audio") {
+                        CallIntent.AUDIO
+                    } else {
+                        CallIntent.VIDEO
                     }
                 )
             }