Remove send message section until it's actually implemented (#632)

Fixes: #616

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/members/details/RoomMemberDetailsView.kt

@@ -89,9 +89,10 @@ fun RoomMemberDetailsView(
 
             Spacer(modifier = Modifier.height(26.dp))
 
-            SendMessageSection(onSendMessage = {
-                // TODO implement send DM
-            })
+            // TODO implement send DM
+            // SendMessageSection(onSendMessage = {
+            //     ...
+            // })
 
             if (!state.isCurrentUser) {
                 BlockUserSection(state)