chore(docs): remove v2 banner on top of the docs

Author: rubenfonseca

docs/overrides/main.html

@@ -1,10 +1,5 @@
 {% extends "base.html" %}
 
-{% block announce %}
-  👋 Powertools for Python v2 is coming soon!
-  We encourage you to add your feedback and follow the progress on <a href="https://github.com/awslabs/aws-lambda-powertools-python/issues/1459">the RFC</a>.
-{% endblock %}
-
 {% block outdated %}
   You're not viewing the latest version.
   <a href="{{ '../' ~ base_url }}">