Removed java7 specific imports that were misplaced

Author: krosenvold

src/main/java/org/codehaus/plexus/archiver/bzip2/PlexusIoBzip2ResourceCollection.java

@@ -4,11 +4,8 @@
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.attribute.PosixFileAttributes;
 import java.util.HashMap;
 
-import org.codehaus.plexus.components.io.attributes.Java7AttributeUtils;
 import org.codehaus.plexus.components.io.attributes.Java7FileAttributes;
 import org.codehaus.plexus.components.io.attributes.PlexusIoResourceAttributes;
 import org.codehaus.plexus.components.io.resources.PlexusIoCompressedFileResourceCollection;

src/main/java/org/codehaus/plexus/archiver/gzip/PlexusIoGzipResourceCollection.java

@@ -4,12 +4,9 @@
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.attribute.PosixFileAttributes;
 import java.util.HashMap;
 import java.util.zip.GZIPInputStream;
 
-import org.codehaus.plexus.components.io.attributes.Java7AttributeUtils;
 import org.codehaus.plexus.components.io.attributes.Java7FileAttributes;
 import org.codehaus.plexus.components.io.attributes.PlexusIoResourceAttributes;
 import org.codehaus.plexus.components.io.resources.PlexusIoCompressedFileResourceCollection;