r/aws_instance: Remove hardcoded AMI ID from 'TestAccAWSInstance_blockDevices', 'TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize', 'TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination'.
r/aws_instance: Remove hardcoded AMI ID from 'TestAccAWSInstance_blockDevices', 'TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize', 'TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination'.

Acceptance test output:

$ make testacc TEST=./aws/ TESTARGS='-run=TestAccAWSInstance_blockDevices'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./aws/ -v -count 1 -parallel 20 -run=TestAccAWSInstance_blockDevices -timeout 120m
=== RUN   TestAccAWSInstance_blockDevices
=== PAUSE TestAccAWSInstance_blockDevices
=== CONT  TestAccAWSInstance_blockDevices
--- PASS: TestAccAWSInstance_blockDevices (100.71s)
PASS
ok  	github.com/terraform-providers/terraform-provider-aws/aws	100.772s
$ make testacc TEST=./aws/ TESTARGS='-run=TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./aws/ -v -count 1 -parallel 20 -run=TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize -timeout 120m
=== RUN   TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize
=== PAUSE TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize
=== CONT  TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize
--- PASS: TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifySize (166.25s)
PASS
ok  	github.com/terraform-providers/terraform-provider-aws/aws	166.294s
$ make testacc TEST=./aws/ TESTARGS='-run=TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./aws/ -v -count 1 -parallel 20 -run=TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination -timeout 120m
=== RUN   TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination
=== PAUSE TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination
=== CONT  TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination
--- PASS: TestAccAWSInstance_EbsRootDevice_MultipleBlockDevices_ModifyDeleteOnTermination (146.25s)
PASS
ok  	github.com/terraform-providers/terraform-provider-aws/aws	146.295s

terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws