Remove currentThreadId as it is not used and breaks on iOS.

Author: pdvrieze

serialization/src/commonMain/kotlin/nl/adaptivity/xmlutil/serialization/impl/compat.kt

@@ -27,5 +27,3 @@ internal expect val KClass<*>.maybeSerialName: String?
 internal expect class CompatLock()
 
 internal expect inline fun <R> CompatLock.invoke(action: () -> R): R
-
-internal expect fun currentThreadId(): Any

serialization/src/jsMain/kotlin/nl/adaptivity/xmlutil/serialization/impl/compat.js.kt

@@ -36,4 +36,3 @@ internal actual val KClass<*>.maybeSerialName: String?
 internal actual class CompatLock
 
 internal actual inline fun <R> CompatLock.invoke(action: () -> R): R = action()
-internal actual fun currentThreadId(): Any = 1

serialization/src/jvmMain/kotlin/nl/adaptivity/xmlutil/serialization/impl/compat.jvm.kt

@@ -45,4 +45,3 @@ internal actual inline fun <R> CompatLock.invoke(action: () -> R): R {
     }
 }
 
-internal actual fun currentThreadId(): Any = Thread.currentThread().id

serialization/src/nativeMain/kotlin/nl/adaptivity/xmlutil/serialization/impl/compat.native.kt

@@ -24,7 +24,6 @@ import kotlinx.atomicfu.locks.ReentrantLock
 import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.InternalSerializationApi
 import kotlinx.serialization.serializerOrNull
-import platform.posix.pthread_self
 import kotlin.reflect.KClass
 
 @OptIn(InternalSerializationApi::class, ExperimentalSerializationApi::class)
@@ -46,4 +45,3 @@ internal actual inline fun <R> CompatLock.invoke(action: () -> R): R {
     }
 }
 
-internal actual fun currentThreadId(): Any = pthread_self()

serialization/src/wasmCommonMain/kotlin/nl/adaptivity/xmlutil/serialization/impl/compat.wasmCommon.kt

@@ -34,4 +34,3 @@ internal actual val KClass<*>.maybeSerialName: String?
 internal actual class CompatLock
 
 internal actual inline fun <R> CompatLock.invoke(action: () -> R): R = action()
-internal actual fun currentThreadId(): Any = 1