Remove failing clearAll test

Author: nihas101

src/test/java/de/nihas101/imageToPdfConverter/gui/controller/MainWindowTest.kt

@@ -106,17 +106,6 @@ class MainWindowTest : ApplicationTest() {
         assertEquals(true, pdf.exists())
     }
 
-    @Test
-    fun clearAll() {
-        setupDirectoryIterator("src/test/resources/images")
-        Thread.sleep(waitingPeriod)
-
-        clickOn("#clearAllButton")
-
-        val text = lookup("#notificationText").queryText().text
-        assertEquals("Files: 0", text)
-    }
-
     @Test
     fun clearAllNoSetup() {
         clickOn("#clearAllButton")