Do not reference java.util in tests that run on JS backend.

generators/src/org/jetbrains/kotlin/generators/tests/GenerateRangesCodegenTestData.java

@@ -136,7 +136,6 @@ public class GenerateRangesCodegenTestData {
         out.println("// Auto-generated by " + GenerateRangesCodegenTestData.class.getName() + ". DO NOT EDIT!");
         out.println("// WITH_RUNTIME");
         out.println();
-        out.println("import java.util.ArrayList");
         if (generatedBody.contains("Max") || generatedBody.contains("Min")) {
             // Import min/max values, but only in case when the generated test case actually uses them (not to clutter tests which don't)
             out.println();