namespace does not need a closing semicolon

Change-Id: Ie8f9d42fc061f6d558f23b98414e04eb3d14b376
diff --git a/media/libmedia/IMediaMetadataRetriever.cpp b/media/libmedia/IMediaMetadataRetriever.cpp
index aa2665a..551cffe 100644
--- a/media/libmedia/IMediaMetadataRetriever.cpp
+++ b/media/libmedia/IMediaMetadataRetriever.cpp
@@ -297,4 +297,4 @@
 
 // ----------------------------------------------------------------------------
 
-}; // namespace android
+} // namespace android