luhn: update to v1.0.0

https://github.com/exercism/problem-specifications/blob/c8263726ed61e9ae553a61c18b15918c4f226f30/exercises/luhn/canonical-data.json

Author: stkent

exercises/luhn/.meta/version

@@ -0,0 +1 @@
+1.0.0

exercises/luhn/src/test/kotlin/LuhnTest.kt

@@ -5,7 +5,6 @@ import kotlin.test.assertTrue
 
 class LuhnTest {
 
-
     @Test
     fun singleDigitStringsCannotBeValid() {
         assertFalse(Luhn.isValid("1"))
@@ -21,14 +20,12 @@ class LuhnTest {
     @Test
     fun simpleValidSINThatRemainsValidIfReversed() {
         assertTrue(Luhn.isValid("059"))
-        assertTrue(Luhn.isValid("950"))
     }
 
     @Ignore
     @Test
     fun simpleValidSINThatBecomesInvalidIfReversed() {
         assertTrue(Luhn.isValid("59"))
-        assertFalse(Luhn.isValid("95"))
     }
 
     @Ignore