diff --git a/BaseTools/Source/Python/AutoGen/GenVar.py b/BaseTools/Source/Python/AutoGen/GenVar.py
index 9d226d0f45..4f894f3f73 100644
--- a/BaseTools/Source/Python/AutoGen/GenVar.py
+++ b/BaseTools/Source/Python/AutoGen/GenVar.py
@@ -26,11 +26,6 @@ var_info = collections.namedtuple("uefi_var", "pcdindex,pcdname,defaultstoragena
 NvStorageHeaderSize = 28
 VariableHeaderSize = 32
 
-def StringArrayToList(StringArray):
-    StringArray = StringArray[1:-1]
-    StringArray = '[' + StringArray + ']'
-    return eval(StringArray)
-
 def PackGUID(Guid):
     GuidBuffer = pack('=LHHBBBBBBBB',
                 int(Guid[0], 16),