Remove Amazon SQS "Experimental Status" disclaimer

Since Amazon SQS broker is now identified with a "Stable" status on the broker docs page, then is the "Experimental Status" disclaimer still necessary? If not, then the disclaimer should be removed.

docs/getting-started/brokers/sqs.rst

@@ -4,13 +4,6 @@
  Using Amazon SQS
 ==================
 
-.. admonition:: Experimental Status
-
-    The SQS transport is in need of improvements in many areas and there
-    are several open bugs.  Unfortunately we don't have the resources or funds
-    required to improve the situation, so we're looking for contributors
-    and partners willing to help.
-
 .. _broker-sqs-installation:
 
 Installation