Update brainflow_boards.cpp

Author: Andrey1994

src/board_controller/brainflow_boards.cpp

@@ -341,7 +341,7 @@ json brainflow_boards_json = {
             {"eeg_channels", {1, 2, 3, 4, 5, 6, 7, 8}},
             {"eeg_names", "CP3,C3,F5,PO3,PO4,F6,C4,CP4"},
             {"other_channels", {9}}
-        }},
+        }}
     }
 }};
-// clang-format on
+// clang-format on