Remove extra comma from JSON monitor file.

Change-Id: I7de6091a136a4e2442678ce12682cb2242e99779
diff --git a/monitor/linaro.json b/monitor/linaro.json
index 0b38d94..efb3a5f 100644
--- a/monitor/linaro.json
+++ b/monitor/linaro.json
@@ -76,7 +76,7 @@
           { "name": "clang-cmake-aarch64-full" },
           { "name": "flang-aarch64-ubuntu-out-of-tree-new-driver" },
           { "name": "flang-aarch64-ubuntu-release" },
-          { "name": "flang-aarch64-ubuntu-rel-assert" },
+          { "name": "flang-aarch64-ubuntu-rel-assert" }
         ]
       },
       {