Remove regacy filtering

Author: EgorkaKulikov

utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/GenerateTestsDialogWindow.kt

@@ -954,12 +954,6 @@ class GenerateTestsDialogWindow(val model: GenerateTestsModel) : DialogWrapper(m
             ParametrizedTestSource.PARAMETRIZE -> TestFramework.allItems.filterNot { it == Junit4 }
         }
 
-        //Will be removed after gradle-intelij-plugin version update upper than 2020.2
-        //TestNg will be reverted after https://github.com/UnitTestBot/UTBotJava/issues/309
-        if (findSdkVersion()?.let { it.feature < 11 } == true) {
-            enabledTestFrameworks = enabledTestFrameworks.filterNot { it == TestNg }
-        }
-
         var defaultItem = when (parametrizedTestSource) {
             ParametrizedTestSource.DO_NOT_PARAMETRIZE -> TestFramework.defaultItem
             ParametrizedTestSource.PARAMETRIZE -> TestFramework.parametrizedDefaultItem