Revert "delay virker å blokkere ApplicationStopPreparing-sigalet"

This reverts commit 445aac8.

Det virket å fungere likevel, men appene bør konfigurere periodSeconds til 1,
ellers ser det ikke ut til at k8s registrerer at appen ikke er ready.

naisful-app/src/main/kotlin/com/github/navikt/tbd_libs/naisful/NaisfulApp.kt

@@ -25,17 +25,13 @@ import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics
 import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics
 import io.micrometer.core.instrument.binder.system.ProcessorMetrics
 import io.micrometer.prometheusmetrics.PrometheusMeterRegistry
-import kotlinx.coroutines.CompletableDeferred
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import org.slf4j.Logger
 import org.slf4j.event.Level
 import java.net.URI
 import java.util.*
 import java.util.concurrent.atomic.AtomicBoolean
-import kotlin.system.exitProcess
 import kotlin.time.Duration
 import kotlin.time.Duration.Companion.seconds
 
@@ -354,16 +350,12 @@ private data class ShutdownHook(
     }
 
     override fun run() {
-        app.environment.log.info("Shut down hook called.")
-        runBlocking(Dispatchers.IO) {
-            app.apply {
-                environment.log.info("Raising ApplicationStopPreparing.")
-                monitor.raiseCatching(ApplicationStopPreparing, environment, environment.log)
-                environment.log.info("waiting $gracefulShutdownDelay before disposing application.")
-                delay(gracefulShutdownDelay)
-                environment.log.info("Disposing application")
-                application.dispose()
-            }
+        app.apply {
+            environment.log.info("Shut down hook called. waiting $gracefulShutdownDelay before disposing application.")
+            monitor.raiseCatching(ApplicationStopPreparing, environment, environment.log)
+            runBlocking { delay(gracefulShutdownDelay) }
+            environment.log.info("Disposing application")
+            application.dispose()
         }
     }
 }