Revert "Drop prebuilt files to android source tree."

Revert submission 20271402-b6958f1c-2b9a-4faa-bf4e-b1c58372ad98

Reason for revert: Verified culprit for b/263438687. See http://b/263438687#comment4 for verification.
Reverted changes: /q/submissionid:20271402-b6958f1c-2b9a-4faa-bf4e-b1c58372ad98

Change-Id: I281eb2cde4716632737efed6c70fbc93e9f9f6a6
diff --git a/.prebuilt_info/prebuilt_info_current_current_zip.asciipb b/.prebuilt_info/prebuilt_info_current_current_zip.asciipb
index 0caa9b8..d5f82b1 100644
--- a/.prebuilt_info/prebuilt_info_current_current_zip.asciipb
+++ b/.prebuilt_info/prebuilt_info_current_current_zip.asciipb
@@ -1,6 +1,6 @@
 drops {
   android_build_drop {
-    build_id: "T1005032"
+    build_id: "T1004707"
     target: "train_build"
     source_file: "mainline-sdks/for-Tiramisu-build/current/com.google.android.scheduling/sdk/scheduling-sdk-current.zip"
   }
diff --git a/current/snapshot-creation-build-number.txt b/current/snapshot-creation-build-number.txt
index 6382e10..0bb8bd6 100644
--- a/current/snapshot-creation-build-number.txt
+++ b/current/snapshot-creation-build-number.txt
@@ -1 +1 @@
-9147603
\ No newline at end of file
+8834326
\ No newline at end of file