[CIFS] clean up some hard to read ifdefs

Christoph had noticed too many ifdefs in the CIFS code making it
hard to read.  This patch removes about a quarter of them from
the C files in cifs by improving a few key ifdefs in the .h files.

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 89aae6c..32b445e 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -50,6 +50,10 @@
 			cFYI(1, ("empty dir"));
 	}
 }
+#else
+static inline void dump_cifs_file_struct(struct file *file, char *label)
+{
+}
 #endif /* DEBUG2 */
 
 /* Returns one if new inode created (which therefore needs to be hashed) */
@@ -660,9 +664,7 @@
 	. and .. for the root of a drive and for those we need
 	to start two entries earlier */
 
-#ifdef CONFIG_CIFS_DEBUG2
 	dump_cifs_file_struct(file, "In fce ");
-#endif
 	if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
 	     is_dir_changed(file)) ||
 	   (index_to_find < first_entry_in_buffer)) {