chameleon: Remove updatable/python2.7/ from MANIFEST.in

The updatable/python2.7/ has been removed. Remove it from MANIFEST.in,
too.

BUG=b:159192174
TEST=None

Change-Id: I68dd708a382a741b3a25bcf5427cdc44b026181b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/2835456
Reviewed-by: Shyh-In Hwang <josephsih@chromium.org>
Commit-Queue: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Tested-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
diff --git a/MANIFEST.in b/MANIFEST.in
index 66e00b4..41424ac 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -13,6 +13,5 @@
 include deploy/init.d/chameleon-updater
 graft deploy/network
 include dist/commit
-include updatable/python2.7/*.py
 include updatable/pip/*
 recursive-include updatable boot-partition.img fpga.rbf socfpga.dtb zImage modules.tgz