Make IWYU output in lint.cpp less messy

And re-run IWYU, adjust #includes.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/io.h b/src/io.h
index a105e67f..f8149a81 100644
--- a/src/io.h
+++ b/src/io.h
@@ -17,7 +17,6 @@ using std::shared_ptr;
 #include <tr1/memory>
 using std::tr1::shared_ptr;
 #endif
-#include <stdbool.h>
 
 #include "common.h"