Fix invalid syntax in yum module

When fixing ansible-lint issues, I introduced a regression
by using the wrong syntax for removing a module. This change
restores functionality.

Change-Id: I2a1f6caa5afc71026c7af78fb5f1f51b5ff40d1e

ansible/install/roles/epel/handlers/main.yml

@@ -5,6 +5,6 @@
 - name: remove_epel
   yum:
     name: epel-release
-    absent: yes
+    state: absent
   ignore_errors: true
   become: true