diff --git a/install-dev/upgrade/sql/1.4.9.1.sql b/install-dev/upgrade/sql/1.4.9.1.sql
deleted file mode 100644
index 22c382dd4..000000000
--- a/install-dev/upgrade/sql/1.4.9.1.sql
+++ /dev/null
@@ -1 +0,0 @@
-SET NAMES 'utf8';
\ No newline at end of file