Drop the check for Windows 9x

We could quite safely assume that the tests are not going to be
executed on Windows 9x.

Author: plamentotev

src/test/java/org/codehaus/plexus/components/io/attributes/FileAttributesTest.java

@@ -33,7 +33,7 @@ public void testGetPosixFileAttributes()
         throws Exception
     {
 
-        if ( Os.isFamily( Os.FAMILY_WINDOWS ) || Os.isFamily( Os.FAMILY_WIN9X ) )
+        if ( Os.isFamily( Os.FAMILY_WINDOWS ) )
         {
             return;
         }

src/test/java/org/codehaus/plexus/components/io/attributes/PlexusIoResourceAttributeUtilsTest.java

@@ -70,7 +70,7 @@ public void testGetAttributesForThisTestClass()
     public void testFolder()
             throws IOException, CommandLineException {
 
-        if (Os.isFamily( Os.FAMILY_WINDOWS ) || Os.isFamily( Os.FAMILY_WIN9X )){
+        if (Os.isFamily( Os.FAMILY_WINDOWS )){
             return; // Nothing to do here.
         }
 
@@ -113,7 +113,7 @@ public void testFolder()
     public void testSrcResource()
             throws IOException
     {
-        if (Os.isFamily( Os.FAMILY_WINDOWS ) || Os.isFamily( Os.FAMILY_WIN9X )){
+        if (Os.isFamily( Os.FAMILY_WINDOWS )){
             return; // Nothing to do here.
         }