Autogenerated update (2020-09-28)

Update:
- servicecontrol_v1

generated/google/apis/servicecontrol_v1.rb

@@ -26,7 +26,7 @@ module Google
     # @see https://cloud.google.com/service-control/
     module ServicecontrolV1
       VERSION = 'V1'
-      REVISION = '20200911'
+      REVISION = '20200917'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'

generated/google/apis/servicecontrol_v1/classes.rb

@@ -400,8 +400,7 @@ module Google
         attr_accessor :principal_email
       
         # String representation of identity of requesting party. Populated for both
-        # first and third party identities. Only present for APIs that support third-
-        # party identities.
+        # first and third party identities.
         # Corresponds to the JSON property `principalSubject`
         # @return [String]
         attr_accessor :principal_subject