[JS] Drop K1 stepping tests

KT-79243

Author: mcpiroman

.idea/kotlinTestDataPluginTestDataPaths.xml

@@ -248,10 +248,6 @@ fun main(args: Array<String>) {
         }
 
         testGroup("js/js.tests/tests-gen", "compiler/testData/debug", testRunnerMethodName = "runTest0") {
-            testClass<AbstractIrJsSteppingTest>(annotations = listOf(*legacyFrontend())) {
-                model("stepping")
-            }
-
             testClass<AbstractFirJsSteppingTest> {
                 model("stepping")
             }

js/js.tests/testFixtures/org/jetbrains/kotlin/generators/tests/GenerateJsTests.kt

@@ -10,7 +10,6 @@ import org.jetbrains.kotlin.js.test.converters.ClassicJsKlibSerializerFacade
 import org.jetbrains.kotlin.js.test.handlers.*
 import org.jetbrains.kotlin.js.test.utils.configureJsTypeScriptExportTest
 import org.jetbrains.kotlin.js.test.utils.configureLineNumberTests
-import org.jetbrains.kotlin.js.test.utils.configureSteppingTests
 import org.jetbrains.kotlin.parsing.parseBoolean
 import org.jetbrains.kotlin.test.Constructor
 import org.jetbrains.kotlin.test.TargetBackend
@@ -171,19 +170,6 @@ open class AbstractWebDemoExamplesTest : AbstractJsIrTest(
     }
 }
 
-open class AbstractIrJsSteppingTest : AbstractJsIrTest(
-    pathToTestDir = "compiler/testData/debug/stepping/",
-    testGroupOutputDirPrefix = "debug/irStepping/"
-) {
-    override val enableBoxHandlers: Boolean
-        get() = false
-
-    override fun configure(builder: TestConfigurationBuilder) {
-        super.configure(builder)
-        builder.configureSteppingTests()
-    }
-}
-
 open class AbstractIrJsLocalVariableTest : AbstractJsIrTest(
     pathToTestDir = "compiler/testData/debug/localVariables/",
     testGroupOutputDirPrefix = "debug/localVariables/"