Drop support for postgres-legacy common chart

There is no need to maintain two postgres charts if all components can
work with the newest version so let's remove the legacy one.

Issue-ID: OOM-2310
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Change-Id: I8b399902e37fdec7e55552e7972daaf1c0c74cfe
diff --git a/kubernetes/dcaegen2/components/dcae-inventory-api/requirements.yaml b/kubernetes/dcaegen2/components/dcae-inventory-api/requirements.yaml
index 3e79830..4c4f567 100644
--- a/kubernetes/dcaegen2/components/dcae-inventory-api/requirements.yaml
+++ b/kubernetes/dcaegen2/components/dcae-inventory-api/requirements.yaml
@@ -17,7 +17,7 @@
   - name: common
     version: ~5.x-0
     repository: '@local'
-  - name: postgres-legacy
+  - name: postgres
     version: ~5.x-0
     repository: '@local'
     alias: postgres