1 files changed, 0 insertions, 4 deletions
diff --git a/string.c b/string.c
index dd534321c8..5def049e35 100644
--- a/string.c
+++ b/string.c
@@ -2607,10 +2607,6 @@ str_center(str, w)
     return res;
 }
 
-extern VALUE mKernel;
-extern VALUE mComparable;
-extern VALUE mEnumerable;
-
 void
 Init_String()
 {