libquota: remove unneeded #include of <sys/quota.h>

The attempted inclusion of sys/quota.h is causing failures in when
building on the hurd and freebsd platforms for Debian.  It's not
necessary any more, so just remove the #include.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/debian/changelog b/debian/changelog
index 296bc50..fdcf4e8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+e2fsprogs (1.42.4-2) unstable; urgency=medium
+
+  * Fix FTBFS problem on the hurd and freebsd platforms
+
+ -- Theodore Y. Ts'o <tytso@mit.edu>  Tue, 12 Jun 2012 18:26:40 -0400
+
 e2fsprogs (1.42.4-1) unstable; urgency=medium
 
   * New upstream version
diff --git a/lib/quota/quotaio.c b/lib/quota/quotaio.c
index 67e74fc..c0ebaa1 100644
--- a/lib/quota/quotaio.c
+++ b/lib/quota/quotaio.c
@@ -15,7 +15,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/file.h>
-#include <sys/quota.h>
 
 #include "common.h"
 #include "quotaio.h"