fix(map.jinja): remove merge from config.get (for salt-ssh)

* `merge` not available via. `salt-ssh`
* Additionally, fix 5dc0b86 in #95
    - No option `merge=True` for `config.get`

Author: myii

template/map.jinja

@@ -21,4 +21,4 @@
 ) %}
 
 {#- Merge the template config (e.g. from pillar) #}
-{%- set template = salt['config.get']('template', default=defaults, merge=True) %}
+{%- set template = salt['config.get']('template', default=defaults) %}