Removed docs for certificate export, since it was removed

website/docs/r/api_management.html.markdown

@@ -192,8 +192,6 @@ The following attributes are exported:
 
 * `additional_location` - Additional datacenter locations of the API Management service. The `additional_location` block is documented below.
 
-* `certificate` - List of Certificates that is installed in the API Management service. Max supported certificates that can be installed is 10. The `certificate` block is documented below.
-
 ---
 
 `additional_location` block exports the following:
@@ -202,18 +200,6 @@ The following attributes are exported:
 
 * `static_ips` - Static IP addresses of the location's virtual machines.
 
-`certificate` block exports the following:
-
-* `certificate_info` - Certificate information.
-
-`certificate_info` block exports the following:
-
-* `expiry` - Expiration date of the certificate.
-
-* `thumbprint` - Thumbprint of the certificate.
-
-* `subject` - Subject of the certificate.
-
 ## Import
 
 Api Management services can be imported using the `resource id`, e.g.