Remove unused babel.cfg

This file is no longer used since [1] was merged.

[1] 7716ce070e7b4fbb06f06d9ef403e8a4d957a4fe

Change-Id: I995cf9dd1bc71d4e5cab82610d246971d4f75484
diff --git a/babel.cfg b/babel.cfg
deleted file mode 100644
index 15cd6cb..0000000
--- a/babel.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-[python: **.py]
-