Update makefile: comment out c examples since not used

Author: kay-kim

Makefile

@@ -99,5 +99,5 @@ examples:
 	curl -SfL https://raw.githubusercontent.com/mongodb/mongo-csharp-driver/master/tests/MongoDB.Driver.Examples/DocumentationExamples.cs -o ${DRIVERS_PATH}/DocumentationExamples.cs
 	curl -SfL https://raw.githubusercontent.com/mongodb/node-mongodb-native/3.0/test/functional/operation_changestream_example_tests.js -o ${DRIVERS_PATH}/ChangeStreamNodeExamples.js
 	curl -SfL https://raw.githubusercontent.com/mongodb/mongo-csharp-driver/master/tests/MongoDB.Driver.Examples/ChangeStreamExamples.cs -o ${DRIVERS_PATH}/ChangeStreamExamples.cs
-	curl -SfL https://raw.githubusercontent.com/mongodb/mongo-c-driver/master/tests/test-mongoc-sample-commands.c -o ${DRIVERS_PATH}/test-mongoc-sample-commands.c 
+#	curl -SfL https://raw.githubusercontent.com/mongodb/mongo-c-driver/master/tests/test-mongoc-sample-commands.c -o ${DRIVERS_PATH}/test-mongoc-sample-commands.c 
 	curl -SfL https://raw.githubusercontent.com/mongodb/mongo-java-driver-reactivestreams/master/examples/documentation/src/DocumentationSamples.java -o ${DRIVERS_PATH}/AsyncDocumentationSamples.java