diff --git a/moto/autoscaling/responses.py b/moto/autoscaling/responses.py
index e58ef810a..70fda4526 100644
--- a/moto/autoscaling/responses.py
+++ b/moto/autoscaling/responses.py
@@ -10,10 +10,6 @@ class AutoScalingResponse(BaseResponse):
     def autoscaling_backend(self):
         return autoscaling_backends[self.region]
 
-    @property
-    def boto3_request(self):
-        return 'Boto3' in self.headers.get('User-Agent', [])
-
     def create_launch_configuration(self):
         instance_monitoring_string = self._get_param('InstanceMonitoring.Enabled')
         if instance_monitoring_string == 'true':
@@ -72,11 +68,6 @@ class AutoScalingResponse(BaseResponse):
     def describe_auto_scaling_groups(self):
         names = self._get_multi_param("AutoScalingGroupNames.member")
         groups = self.autoscaling_backend.describe_autoscaling_groups(names)
-        if self.boto3_request:
-            for group in groups:
-                if group.health_check_period is None:
-                    group.health_check_period = 300
-                self.autoscaling_backend.autoscaling_groups[group.name] = group
         template = self.response_template(DESCRIBE_AUTOSCALING_GROUPS_TEMPLATE)
         return template.render(groups=groups)
 
diff --git a/tests/test_autoscaling/test_autoscaling_boto3.py b/tests/test_autoscaling/test_autoscaling_boto3.py
deleted file mode 100644
index 3580da199..000000000
--- a/tests/test_autoscaling/test_autoscaling_boto3.py
+++ /dev/null
@@ -1,41 +0,0 @@
-from __future__ import unicode_literals
-import boto3
-import sure  # noqa
-
-from moto import mock_autoscaling
-
-
-@mock_autoscaling
-def test_create_autoscaling_group():
-        client = boto3.client('autoscaling', region_name='us-east-1')
-        _ = client.create_launch_configuration(
-            LaunchConfigurationName='test_launch_configuration'
-        )
-        response = client.create_auto_scaling_group(
-            AutoScalingGroupName='test_asg',
-            LaunchConfigurationName='test_launch_configuration',
-            MinSize=0,
-            MaxSize=20,
-            DesiredCapacity=5
-        )
-        response['ResponseMetadata']['HTTPStatusCode'].should.equal(200)
-
-
-@mock_autoscaling
-def test_describe_autoscaling_groups():
-        client = boto3.client('autoscaling', region_name='us-east-1')
-        _ = client.create_launch_configuration(
-            LaunchConfigurationName='test_launch_configuration'
-        )
-        _ = client.create_auto_scaling_group(
-            AutoScalingGroupName='test_asg',
-            LaunchConfigurationName='test_launch_configuration',
-            MinSize=0,
-            MaxSize=20,
-            DesiredCapacity=5
-        )
-        response = client.describe_auto_scaling_groups(
-            AutoScalingGroupNames=["test_asg"]
-        )
-        response['ResponseMetadata']['HTTPStatusCode'].should.equal(200)
-        response['AutoScalingGroups'][0]['AutoScalingGroupName'].should.equal('test_asg')
diff --git a/tests/test_autoscaling/test_launch_configurations_boto3.py b/tests/test_autoscaling/test_launch_configurations_boto3.py
deleted file mode 100644
index 144f87938..000000000
--- a/tests/test_autoscaling/test_launch_configurations_boto3.py
+++ /dev/null
@@ -1,23 +0,0 @@
-from __future__ import unicode_literals
-import boto3
-
-import sure  # noqa
-
-from moto import mock_autoscaling
-
-
-@mock_autoscaling
-def test_create_launch_configuration():
-    client = boto3.client('autoscaling', region_name='us-east-1')
-    response = client.create_launch_configuration(
-        LaunchConfigurationName='tester',
-        ImageId='ami-abcd1234',
-        InstanceType='t1.micro',
-        KeyName='the_keys',
-        SecurityGroups=["default", "default2"],
-        UserData="This is some user_data",
-        InstanceMonitoring={'Enabled': True},
-        IamInstanceProfile='arn:aws:iam::123456789012:instance-profile/testing',
-        SpotPrice='0.1'
-    )
-    response['ResponseMetadata']['HTTPStatusCode'].should.equal(200)