Remove TEST_MAPPING file unit_test:true is sufficient

unit_test:true all run in presubmit already which makes
the TEST_MAPPING definition unrequired.

(cherry picked from commit 393b17015ff3a9018cc7616333f70d9d6b2b6028)

Test: presubmit
Bug: 202488363
Bug: 175408655
Change-Id: I34a0e2e4a41e69548982cd17b9b3566580a72f51
Merged-In: I34a0e2e4a41e69548982cd17b9b3566580a72f51
1 file changed
tree: 57dc694ad518a9867c6ab3146be3e27ee5e2d387
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg