Revert "XOS/NEM charts, use a global registry var, split docker image name/tag/pullPolicy"

This reverts commit 1f58c2afbd680c8c618bff6f66e9982515dd1caf.

Change-Id: I0d7ef37a420168276472675b005482d6d11daabd
diff --git a/xos-gui/values.yaml b/xos-gui/values.yaml
index 7e54158..4ea2e9d 100644
--- a/xos-gui/values.yaml
+++ b/xos-gui/values.yaml
@@ -13,20 +13,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+imagePullPolicy: 'Always'
+
 # Docker Images
-images:
-  xos_gui:
-    repository: 'xosproject/xos-gui'
-    tag: "{{ .Chart.AppVersion }}"
-    pullPolicy: 'Always'
-
-  xos_ws:
-    repository: 'xosproject/xos-ws'
-    tag: '2.0.0'
-    pullPolicy: 'Always'
-
-global:
-  registry: ""
+xos_guiImage: 'xosproject/xos-gui:master'
+xos_wsImage: 'xosproject/xos-ws:master'
 
 # NodePorts
 xos_guiNodePort: 30001