rm java check dbg print and ignore errors

tasks/java.yml

@@ -2,15 +2,12 @@
 - name: "Check if Java is installed"
   shell: command -v java
   register: check_java
-  failed_when: check_java.rc not in  (0, 1)
+  ignore_errors: True
   changed_when: False
   tags:
     - kafka-install
     - java
 
-- name: "Was Java installed?"
-  debug: var=check_java
-
 - name: "Install OpenJDK"
   apt: name=openjdk-7-jre-headless state=present
   sudo: yes