Fix chart builds

We broke the chart builds when we dropped the 'package' target in the
Makefile.   This fixes it also removes/drops the need to run the sed
locally since we point to the local folders anyways.

Change-Id: Iac8924f14c8fbb8e07b96b51790539c3ce1618e6

playbooks/build-chart.yaml

@@ -25,16 +25,8 @@
       args:
         executable: /bin/bash
 
-    - name: updates the requirements due to the lack of helm serve in helm 3
-      shell: |
-        find "{{ zuul.project.src_dir }}" -type f -name "requirements.yaml" -exec sed -i "s#http://localhost:8879/charts#https://tarballs.opendev.org/openstack/openstack-helm-infra#g" {} \;
-      args:
-        executable: /bin/bash
-
     - name: make all
       make:
         chdir: "{{ zuul.project.src_dir }}"
         target: all
-        params:
-          TASK: package
 ...