arm-apps: Remove obmc-phosphor-license

This class is on its way to being deprecated, and oe-core packagegroups
don't have a LICENSE specified in the recipe.  Adopt the same semantics
for meta-arm.

(From meta-arm rev: beaca9ceae8bf3c75bec515cf3b2947a2051d70d)

Change-Id: I57735bbb0c9bb08907391617117e189a769ec440
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-arm/recipes-phosphor/packagegroups/packagegroup-arm-apps.bb b/meta-arm/recipes-phosphor/packagegroups/packagegroup-arm-apps.bb
index 4a32e6e..a5b69a1 100644
--- a/meta-arm/recipes-phosphor/packagegroups/packagegroup-arm-apps.bb
+++ b/meta-arm/recipes-phosphor/packagegroups/packagegroup-arm-apps.bb
@@ -2,7 +2,6 @@
 PR = "r1"
 
 inherit packagegroup
-inherit obmc-phosphor-license
 
 PROVIDES = "${PACKAGES}"
 PACKAGES = " \