Revert "[K/N] do not save klib hash in header caches"

This reverts commit 612caf13cf.

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CacheStorage.kt

@@ -32,11 +32,9 @@ internal class CacheStorage(private val generationState: NativeGenerationState)
 
     fun saveAdditionalCacheInfo() {
         outputFiles.prepareTempDirectories()
-        if (!generationState.config.produce.isHeaderCache) {
-            saveKlibContentsHash()
-        }
-        saveInlineFunctionBodies()
+        saveKlibContentsHash()
         saveCacheBitcodeDependencies()
+        saveInlineFunctionBodies()
         saveClassFields()
         saveEagerInitializedProperties()
     }