Fix cmake build of fplbase.
Fix cmake build of fplbase.

Test cmake file was referencing a file that no longer exists.
PiperOrigin-RevId: 142496350
Change-Id: I727a44a15314c617fe352de6f5a02c906a4aa7c0

google/fplbase,google/fplbase,google/fplbase,google/fplbase