Revert "[FIR2IR] Set proper offsets for generated data class members"

This reverts commit b33798d65a.

Reverted because of KT-58215


Co-authored-by: Aleksandr Korepanov <Alexander.Korepanov@jetbrains.com>


Merge-request: KT-MR-14328
Merged-by: Anton Bannykh <Anton.Bannykh@jetbrains.com>

compiler/testData/debug/stepping/delegation.kt

@@ -23,13 +23,6 @@ fun box() {
 // test.kt:14 <init>
 // test.kt:17 box
 // test.kt:18 box
-// EXPECTATIONS FIR JVM_IR
-// test.kt:14 f
-// test.kt:10 f
-// test.kt:11 f
-// test.kt:14 f
-// test.kt:19 box
-// EXPECTATIONS ClassicFrontend JVM_IR
 // test.kt:11 f
 // test.kt:-1 f
 // test.kt:19 box