Reland "Cronet: Simplify Android GN logic for srcjars by not using them"

No need to zip up the generated source just to unzip it again :P

This reverts commit f4e7bed3e85a67d0c88f017c5d4dc59405776866.

Reason for reland: Fixed missing deps in __final_jni template

TBR=pauljensen@chromium.org,agrieve@chromium.org

Bug: 908479
Change-Id: I1177d550eb33737f47192bd70db5358c6392598c
Reviewed-on: https://chromium-review.googlesource.com/c/1351930
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611108}
2 files changed