Remove unneeded default imports in stdlib and tests

libraries/stdlib/js/src/generated/_ArraysJs.kt

@@ -13,9 +13,6 @@ package kotlin.collections
 import kotlin.js.*
 import primitiveArrayConcat
 import withType
-import kotlin.*
-import kotlin.text.*
-import kotlin.comparisons.*
 
 /**
  * Returns a [List] that wraps the original array.

libraries/stdlib/js/src/generated/_CollectionsJs.kt

@@ -11,9 +11,6 @@ package kotlin.collections
 //
 
 import kotlin.js.*
-import kotlin.*
-import kotlin.text.*
-import kotlin.comparisons.*
 
 /**
  * Reverses elements in the list in-place.

libraries/stdlib/js/src/generated/_ComparisonsJs.kt

@@ -11,9 +11,6 @@ package kotlin.comparisons
 //
 
 import kotlin.js.*
-import kotlin.*
-import kotlin.text.*
-import kotlin.comparisons.*
 
 /**
  * Returns the greater of two values.