tasks: heat_install: Fix virtualenv-tools issue on openSUSE

openSUSE is also suffering from the same virtualenv-tools issue so
we need to remove the existing python-2.7 symlink.

Link: fireteam/virtualenv-tools#5
Related-Bug: #1637509
Partial-Bug: #1644629
Change-Id: I628251e8729bd50035b13a11761872b23e001fc5

tasks/heat_install.yml

@@ -100,12 +100,12 @@
   when: heat_get_venv | failed or heat_get_venv | skipped
   notify: Restart heat services
 
-- name: CentOS remove python from path first
+- name: Remove python from path first (CentOS, openSUSE)
   file:
     path:  "{{ heat_bin | dirname }}/bin/python2.7"
     state: "absent"
   when:
-    - ansible_pkg_mgr in ['yum', 'dnf']
+    - ansible_pkg_mgr in ['yum', 'dnf', 'zypper']
     - heat_get_venv | changed
 
 - name: Update virtualenv path