Ensure tmp file is always deleted when it is read

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/ReadReceiptHandler.kt

@@ -122,14 +122,12 @@ internal class ReadReceiptHandler @Inject constructor(
 
     fun getContentFromInitSync(roomId: String): ReadReceiptContent? {
         return roomSyncEphemeralTemporaryStore.read(roomId)
+                ?.also { roomSyncEphemeralTemporaryStore.delete(roomId) }
                 ?.events
                 ?.firstOrNull { it.type == EventType.RECEIPT }
                 ?.let {
                     @Suppress("UNCHECKED_CAST")
                     it.content as? ReadReceiptContent
                 }
-                ?.also {
-                    roomSyncEphemeralTemporaryStore.delete(roomId)
-                }
     }
 }