fix: remove contact info, use international format (#19828)

- for international letters, city and country should be upper case: https://www.deutschepost.de/content/dam/dpag/images/B_b/Briefe_ins_Ausland/downloads/dp-brief-international-handlingbroschuere-072019.pdf#page=15
- it is not customary, to use contact information such as phone number in the address

erpnext/regional/germany/address_template.html

@@ -1,8 +1,8 @@
 {{ address_line1 }}<br>
 {% if address_line2 %}{{ address_line2 }}<br>{% endif -%}
-{{ pincode }} {{ city }}<br>
+{% if country in ["Germany", "Deutschland"] %}
-{% if country %}{{ country }}<br>{% endif -%}
+    {{ pincode }} {{ city }}
-<br>
+{% else %}
-{% if phone %}Tel: {{ phone }}<br>{% endif -%}
+    {{ pincode }} {{ city | upper }}<br>    
-{% if fax %}Fax: {{ fax }}<br>{% endif -%}
+    {{ country | upper }}
-{% if email_id %}E-Mail: {{ email_id }}<br>{% endif -%}
+{% endif %}