[OE-core] allarch: No need to make packaging machine specific

[Richard Purdie]

Normally do_package is machine specific but this makes little sense for allarch 
recipes. This patch unsets the appropriate variable.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/allarch.bbclass b/meta/classes/allarch.bbclass
index 18c9ae2..d191cd7 100644
--- a/meta/classes/allarch.bbclass
+++ b/meta/classes/allarch.bbclass
@@ -20,3 +20,5 @@ PACKAGE_EXTRA_ARCHS = ""
 EXCLUDE_FROM_SHLIBS = "1"
 INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
 INHIBIT_PACKAGE_STRIP = "1"
+
+do_package[stamp-extra-info] = ""