Remove incorrect conflict merge

Author: SleeplessByte

exercises/practice/forth/src/test/kotlin/ForthTest.kt

@@ -1,6 +1,4 @@
 import org.junit.jupiter.api.Nested
-import org.junit.Rule
-import org.junit.rules.ExpectedException
 import kotlin.test.Ignore
 import kotlin.test.Test
 import kotlin.test.assertEquals