Revert "Update bundletools to version 1.4.0"

This reverts commit 3031091954b82704e94d32d2a75cb07d083d81e3.

Reason for revert: 1152140

Original change's description:
> Update bundletools to version 1.4.0
>
> Bug: 1151352
> Change-Id: I2a117e5f6cb3bf1b08f7f9f68cea7e4a893db6fb
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2553852
> Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
> Commit-Queue: Peter Wen <wnwen@chromium.org>
> Auto-Submit: Mohamed Heikal <mheikal@chromium.org>
> Reviewed-by: Peter Wen <wnwen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#830240}

TBR=wnwen@chromium.org,mheikal@chromium.org

Change-Id: Ia1f6954b49d418437f3dc2f0e457e0a470842132
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1151352
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2556358
Reviewed-by: Shimi Zhang <ctzsm@chromium.org>
Commit-Queue: Shimi Zhang <ctzsm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830392}
GitOrigin-RevId: 130fbc7183504683369137323711eb0a9144dbbf
diff --git a/bundletool/README.chromium b/bundletool/README.chromium
index cc0241d..b50bf12 100644
--- a/bundletool/README.chromium
+++ b/bundletool/README.chromium
@@ -1,6 +1,6 @@
 Name: Android SDK bundletool
 Short Name:  bundletool
-Version: 1.4.0
+Version: 1.2.0
 License: Apache Version 2.0
 License File: NOT_SHIPPED
 Security Critical: No
diff --git a/bundletool/cipd.yaml b/bundletool/cipd.yaml
index 0b69dda..a59d7ee 100644
--- a/bundletool/cipd.yaml
+++ b/bundletool/cipd.yaml
@@ -10,4 +10,4 @@
 # swarming isolation works properly with symlinks.
 install_mode: copy
 data:
-  - file: bundletool-all-1.4.0.jar
+  - file: bundletool-all-1.2.0.jar