chore(compute): remove unused region tags (#10043)

Author: alarconesparza

compute/cmdline/src/main/java/ComputeEngineSample.java

@@ -128,7 +128,6 @@ public static void main(String[] args) {
     System.exit(1);
   }
 
-  // [START list_instances]
   /**
    * Print available machine instances.
    *
@@ -154,10 +153,8 @@ public static boolean printInstances(Compute compute) throws IOException {
     }
     return found;
   }
-  // [END list_instances]
 
   // [START compute_create_instance]
-  // [START create_instances]
   public static Operation startInstance(Compute compute, String instanceName) throws IOException {
     System.out.println("================== Starting New Instance ==================");
 
@@ -226,7 +223,7 @@ public static Operation startInstance(Compute compute, String instanceName) thro
     Compute.Instances.Insert insert = compute.instances().insert(PROJECT_ID, ZONE_NAME, instance);
     return insert.execute();
   }
-  // [END create_instances]
+
   // [END compute_create_instance]
 
   private static Operation deleteInstance(Compute compute, String instanceName) throws Exception {
@@ -246,7 +243,6 @@ public static String getLastWordFromUrl(String url) {
   }
 
   // [START compute_wait_for_operation]
-  // [START wait_until_complete]
   /**
    * Wait until {@code operation} is completed.
    *
@@ -288,6 +284,5 @@ public static Operation.Error blockUntilComplete(
     }
     return operation == null ? null : operation.getError();
   }
-  // [END wait_until_complete]
   // [END compute_wait_for_operation]
 }