Fixing erroneously trying to delete reserved keys.
Fixing erroneously trying to delete reserved keys.

sharbison3/python-docs-samples,JavaRabbit/CS496_capstone,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,BrandonY/python-docs-samples,sharbison3/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,GoogleCloudPlatform/python-docs-samples,sharbison3/python-docs-samples,canglade/NLP,JavaRabbit/CS496_capstone,canglade/NLP,JavaRabbit/CS496_capstone,BrandonY/python-docs-samples,BrandonY/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,hashems/Mobile-Cloud-Development-Projects,canglade/NLP,BrandonY/python-docs-samples,GoogleCloudPlatform/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,canglade/NLP,sharbison3/python-docs-samples,JavaRabbit/CS496_capstone