Remove unneeded default imports in stdlib and tests

libraries/stdlib/jvm/test/collections/CollectionJVMTest.kt

@@ -6,12 +6,10 @@
 package test.collections
 
 import test.assertStaticAndRuntimeTypeIs
-import kotlin.test.*
-import kotlin.comparisons.*
-import java.util.*
-
 import test.io.deserializeFromHex
 import test.io.serializeAndDeserialize
+import java.util.*
+import kotlin.test.*
 
 class CollectionJVMTest {
 

libraries/stdlib/jvm/test/collections/MapJVMTest.kt

@@ -8,7 +8,6 @@ package test.collections
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.ConcurrentMap
 import kotlin.test.*
-import kotlin.comparisons.*
 
 class MapJVMTest {
     @Test fun createSortedMap() {

libraries/stdlib/jvm/test/utils/LazyJVMTest.kt

@@ -5,8 +5,6 @@
 
 package test.utils
 
-
-import kotlin.*
 import kotlin.test.*
 import kotlin.concurrent.thread
 import test.io.serializeAndDeserialize