aixPB: Remove packages already installed by yum (#1704)

* aixPB: Remove packages already installed via yum: statements

* aixPB: Add additional tag 'yum' to a task

* aixPB: Add additional tag 'yum' to a task

ansible/playbooks/AdoptOpenJDK_AIX_Playbook/roles/yum/tasks/main.yml

@@ -94,13 +94,14 @@
 - name: Install yum package support
   yum: name={{ item }} state=present update_cache=yes
   with_items:
-    - http://www.bullfreeware.com/download/bin/2328/libiconv-1.14-22.aix6.1.ppc.rpm
-    - http://www.bullfreeware.com/download/bin/2591/libunistring-0.9.6-2.aix6.1.ppc.rpm
-    - http://www.bullfreeware.com/download/bin/3944/perl-5.24.0-3.aix6.1.ppc.rpm
     - http://www.oss4aix.org/download/RPMS/cmake/cmake-3.7.2-1.aix6.1.ppc.rpm
-  tags: rpm_install
+  tags:
+    - rpm_install
+    - yum
 
 - name: Ensure perl from /opt/freeware/bin is the default in /usr/bin
   shell: mv /usr/bin/perl /usr/bin/perl.old && ln -s /opt/freeware/bin/perl /usr/bin/
   ignore_errors: True
-  tags: rpm_install
+  tags:
+    - rpm_install
+    - yum