[K/N, K/JS, K/WASM] Enable FakeOverrideRebuilder by default

While not beeing final solution, this is closer to what
we want to have in the end. Enabling on non-JVM targets
would help better testing.

Enabling in JVM is now not possible yet, as some of the bugs are
not fixed yet (check KT-61360 for details)

^KT-62476

compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/klib/compilerPipeline.kt

@@ -251,8 +251,7 @@ fun transformFirToIr(
             inlineConstTracker = null,
             expectActualTracker = moduleStructure.compilerConfiguration[CommonConfigurationKeys.EXPECT_ACTUAL_TRACKER],
             allowNonCachedDeclarations = false,
-            useIrFakeOverrideBuilder =
-            moduleStructure.compilerConfiguration.getBoolean(CommonConfigurationKeys.USE_IR_FAKE_OVERRIDE_BUILDER),
+            useIrFakeOverrideBuilder = true
         ),
         IrGenerationExtension.getInstances(moduleStructure.project),
         signatureComposer = DescriptorSignatureComposerStub(JsManglerDesc),