Revert "Revise android plugin version to 4.x 1. Use latest gradle plugin publish plugin 2. Revise the android plugin version to 4.x 3. Revise plugin version to 4.0.0"
Revert "Revise android plugin version to 4.x 1. Use latest gradle plugin publish plugin 2. Revise the android plugin version to 4.x 3. Revise plugin version to 4.0.0"

This reverts commit 193d709bb86f45b08712c86011c2f01ad397ddd9.

flurry/upload-clients,flurry/upload-clients