packagegroups: 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-phosphor.

(From meta-phosphor rev: 72c0635ff972e51d502c43ae7de6e775a6bb5aa0)

Change-Id: I601ae5c5618cd098459baebbd5109972b52385e7
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
index e8ac1c4..050a7b4 100644
--- a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
+++ b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
@@ -2,7 +2,6 @@
 PR = "r1"
 
 inherit packagegroup
-inherit obmc-phosphor-license
 
 PROVIDES = "${PACKAGES}"
 PACKAGES = " \
diff --git a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-ipmid-providers.bb b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-ipmid-providers.bb
index cbe7e7f..265abac 100644
--- a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-ipmid-providers.bb
+++ b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-ipmid-providers.bb
@@ -2,7 +2,6 @@
 PR = "r1"
 
 inherit packagegroup
-inherit obmc-phosphor-license
 
 PROVIDES = "${PACKAGES}"
 PACKAGES = "${PN}-libs"
diff --git a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
index 7ca6216..6890493 100644
--- a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
+++ b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-phosphor-debugtools.bb
@@ -2,7 +2,6 @@
 PR = "r1"
 
 inherit packagegroup
-inherit obmc-phosphor-license
 
 RDEPENDS_${PN} = " \
     strace \