Minor in JS backend: drop unnecessary inline annotations.

js/js.translator/testData/multideclaration/cases/multiValForMap.kt

@@ -3,7 +3,7 @@ package foo
 import java.util.HashMap
 
 
-public inline fun <K, V> Map<K, V>.iterator(): Iterator<Map.Entry<K, V>> {
+public fun <K, V> Map<K, V>.iterator(): Iterator<Map.Entry<K, V>> {
     val entrySet = this.entrySet()
     return entrySet.iterator()
 }
@@ -38,4 +38,4 @@ fun box(): String {
     if (s2 != "s2") return "s2 != 's2', it: ${s2}"
 
     return "OK"
-}
+}