Revert "Set build files for the mobly snippet lib" am: 85489b108c am: 86b1298a5f am: 0b721ed5f4

Original change: https://android-review.googlesource.com/c/platform/external/mobly-snippet-lib/+/1940494

Change-Id: Icaa25a9d25489523e91ad7329c460cbf9fa98633