fix macos and windows compilation issues

multiplatform-crypto/src/mingwX64Test/kotlin/com/ionspin/kotlin/bignum/crypto/util/testBlocking.kt

@@ -1,27 +0,0 @@
-/*
- *    Copyright 2019 Ugljesa Jovanovic
- *
- *    Licensed under the Apache License, Version 2.0 (the "License");
- *    you may not use this file except in compliance with the License.
- *    You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- *    Unless required by applicable law or agreed to in writing, software
- *    distributed under the License is distributed on an "AS IS" BASIS,
- *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *    See the License for the specific language governing permissions and
- *    limitations under the License.
- */
-
-package com.ionspin.kotlin.crypto.util
-
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.runBlocking
-
-/**
- * Created by Ugljesa Jovanovic
- * ugljesa.jovanovic@ionspin.com
- * on 20-Jul-2019
- */
-actual fun testBlocking(block: suspend () -> Unit) = runBlocking { block() }