Minor in JS backend: drop unnecessary inline annotations.

js/js.translator/testData/extensionFunction/cases/extensionOnClassWithExplicitAndImplicitReceiver.kt

@@ -8,11 +8,11 @@ public class Foo {
 
 }
 
-public inline fun Foo.fooImp(): String {
+public fun Foo.fooImp(): String {
     return "impl" + blah()
 }
 
-public inline fun Foo.fooExp(): String {
+public fun Foo.fooExp(): String {
     return "expl" + this.blah()
 }
 
@@ -21,4 +21,4 @@ fun box(): Boolean {
     if (a.fooImp() != "impl5") return false
     if (a.fooExp() != "expl5") return false
     return true;
-}
+}