diff --git a/src/Makevars b/src/Makevars
deleted file mode 100644
index a7f3510..0000000
--- a/src/Makevars
+++ /dev/null
@@ -1 +0,0 @@
-CXX_STD = CXX11
diff --git a/src/Makevars.win b/src/Makevars.win
deleted file mode 100644
index a7f3510..0000000
--- a/src/Makevars.win
+++ /dev/null
@@ -1 +0,0 @@
-CXX_STD = CXX11