remove include where not used

diff --git a/backends/firrtl/firrtl.cc b/backends/firrtl/firrtl.cc
index 87db0edf780fd8029bf38cc682526c38b3f8f9bf..22aa686a77be289bbf5e649843cd36779c329d49 100644 (file)
--- a/backends/firrtl/firrtl.cc
+++ b/backends/firrtl/firrtl.cc
@@ -25,7 +25,6 @@
 #include "kernel/log.h"
 #include <algorithm>
 #include <string>
-#include <regex>
 #include <vector>
 #include <cmath>