Remove unneeded lax check

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/MegolmSessionData.kt

@@ -70,15 +70,4 @@ data class MegolmSessionData(
          */
         @Json(name = "forwarding_curve25519_key_chain")
         val forwardingCurve25519KeyChain: List<String>? = null
-) {
-
-    fun isValid(): Boolean {
-        return roomId != null &&
-                forwardingCurve25519KeyChain != null &&
-                algorithm != null &&
-                senderKey != null &&
-                senderClaimedKeys != null &&
-                sessionId != null &&
-                sessionKey != null
-    }
-}
+)

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/keysbackup/RustKeyBackupService.kt

@@ -507,13 +507,6 @@ internal class RustKeyBackupService @Inject constructor(
                         async {
                             slice.mapNotNull { pair ->
                                 decryptKeyBackupData(pair.second.value, pair.second.key, pair.first, recoveryKey)
-                                        ?.takeIf { sessionData ->
-                                            sessionData.isValid().also {
-                                                if (!it) {
-                                                    Timber.w("restoreKeysWithRecoveryKey: malformed sessionData $sessionData")
-                                                }
-                                            }
-                                        }
                             }
                         }
                     }