Remove code testing for unsupported versions of boto3/botocore

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections/community.aws@2c7557d

plugins/modules/ec2_transit_gateway_info.py

@@ -183,9 +183,6 @@ def __init__(self, module, results):
         self._connection = self._module.client('ec2')
         self._check_mode = self._module.check_mode
 
-        if not hasattr(self._connection, 'describe_transit_gateways'):
-            self._module.fail_json(msg='transit gateway module requires boto3 >= 1.9.52')
-
     @AWSRetry.exponential_backoff()
     def describe_transit_gateways(self):
         """