fix unused import

Author: BillCarsonFr

matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/UnwedgingTest.kt

@@ -21,7 +21,6 @@ import org.amshove.kluent.shouldBe
 import org.junit.Assert
 import org.junit.Before
 import org.junit.FixMethodOrder
-import org.junit.Ignore
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.junit.runners.MethodSorters