[JS] Remove non-functional IGNORE_FIR directive in js box tests

js/js.translator/testData/box/nameClashes/jsQualifier.kt

@@ -1,4 +1,3 @@
-// IGNORE_FIR
 // MODULE: lib
 // FILE: lib.kt
 @file:JsQualifier("chopchop.foo")

js/js.translator/testData/box/nameClashes/localFunctionInLambda.kt

@@ -1,4 +1,3 @@
-// IGNORE_FIR
 // EXPECTED_REACHABLE_NODES: 1287
 // MODULE: lib
 // FILE: lib.kt
@@ -17,4 +16,4 @@ object O
 fun box(): String = {
     fun O.bar() = "O"
     O.bar() + "K".bar()
-}()
+}()

js/js.translator/testData/box/nameClashes/propertyAndNativeMethod.kt

@@ -1,4 +1,3 @@
-// IGNORE_FIR
 // EXPECTED_REACHABLE_NODES: 1285
 // MODULE: lib
 // FILE: lib.kt
@@ -24,4 +23,4 @@ fun box(): String {
     assertEquals(32, bar)
 
     return "OK"
-}
+}