Reset poky to before our libpam hacks

Things got a bit out of synch with openbmc-config due to the libpam
issues and the migration from the meta-* layers.

Revert the two previous commits and then put the latest poky in with the
libpam revert and get openbmc-config right again.

Revert "Revert "libpam: update 1.3.1 -> 1.5.1""

This reverts commit 87ddd3eab4df68e624b5350ccaab28b3b97547c0.

Revert "poky: subtree update:796be0593a..10c69538c0"

This reverts commit c723b72979bfac6362509cf1fe086900f6641f28.

Change-Id: I3a1f405193aee6a21fe0cd24be9927c143a23d9a
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/poky/meta/classes/insane.bbclass b/poky/meta/classes/insane.bbclass
index 105d2a5..cf2165c 100644
--- a/poky/meta/classes/insane.bbclass
+++ b/poky/meta/classes/insane.bbclass
@@ -87,8 +87,7 @@
 
 QAPATHTEST[shebang-size] = "package_qa_check_shebang_size"
 def package_qa_check_shebang_size(path, name, d, elf, messages):
-    import stat
-    if os.path.islink(path) or stat.S_ISFIFO(os.stat(path).st_mode) or elf:
+    if os.path.islink(path) or elf:
         return
 
     try: