Removed a duplicate line + Fixed typo in the comments of lib/cpp/src/thrift/concurrency/Thread.h
Client: cpp
Patch: gaganso <gagan.somashekar@gmail.com>

This closes #2104
diff --git a/lib/cpp/src/thrift/concurrency/Thread.h b/lib/cpp/src/thrift/concurrency/Thread.h
index e803a82..ed43754 100644
--- a/lib/cpp/src/thrift/concurrency/Thread.h
+++ b/lib/cpp/src/thrift/concurrency/Thread.h
@@ -63,7 +63,7 @@
  * and ready to start execution.  More or less analogous to java.lang.Thread
  * (minus all the thread group, priority, mode and other baggage, since that
  * is difficult to abstract across platforms and is left for platform-specific
- * ThreadFactory implemtations to deal with
+ * ThreadFactory implementations to deal with
  *
  * @see apache::thrift::concurrency::ThreadFactory)
  */
diff --git a/lib/cpp/src/thrift/server/TNonblockingServer.h b/lib/cpp/src/thrift/server/TNonblockingServer.h
index 82bc375..e44c7ee 100644
--- a/lib/cpp/src/thrift/server/TNonblockingServer.h
+++ b/lib/cpp/src/thrift/server/TNonblockingServer.h
@@ -54,7 +54,6 @@
 using apache::thrift::concurrency::Runnable;
 using apache::thrift::concurrency::ThreadManager;
 using apache::thrift::concurrency::ThreadFactory;
-using apache::thrift::concurrency::ThreadFactory;
 using apache::thrift::concurrency::Thread;
 using apache::thrift::concurrency::Mutex;
 using apache::thrift::concurrency::Guard;