Clean up RenderWorkflowInTest

Author: bnvinay92

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/RenderWorkflowInTest.kt

@@ -51,7 +51,7 @@ class RenderWorkflowInTest {
     val workflow = Workflow.stateless<String, Nothing, String> { "props: $it" }
     // Don't allow the workflow runtime to actually start.
 
-    val renderings = renderWorkflowIn(workflow, TestScope(), props) {}
+    val renderings = renderWorkflowIn(workflow, pausedTestScope, props) {}
     assertEquals("props: foo", renderings.value.rendering)
   }
 
@@ -180,7 +180,6 @@ class RenderWorkflowInTest {
     }
     sink.send("unchanging state")
     sink.send("unchanging state")
-    pausedTestScope.advanceUntilIdle()
     scope.cancel()
 
     assertFalse(snapped)

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/internal/WorkflowRunnerTest.kt

@@ -220,7 +220,6 @@ internal class WorkflowRunnerTest {
     assertEquals("foo", cancellationException!!.message)
   }
 
-
   private fun <T> WorkflowRunner<*, T, *>.runTillNextOutput(): WorkflowOutput<T>? = scope.run {
     val firstOutputDeferred = async { nextOutput() }
     runCurrent()