Remove unneeded default imports in stdlib and tests

libraries/stdlib/test/utils/LazyTest.kt

@@ -5,7 +5,6 @@
 
 package test.utils
 
-import kotlin.*
 import kotlin.test.*
 
 class LazyTest {
@@ -43,4 +42,4 @@ class LazyTest {
         assertEquals("1", lazyInt.toString())
         assertEquals(1, callCount)
     }
-}
+}

libraries/stdlib/test/utils/TODOTest.kt

@@ -5,7 +5,6 @@
 
 package test.utils
 
-import kotlin.*
 import kotlin.test.*
 
 class TODOTest {