binary search tool: Cleanup state files after SaveState unit test

Running test_bad_save_state would previously leave a save state with no
symlink pointing to it. This would cause multiple save states to gather
and clutter up the directory. We now simply cleanup the generated save
state in this test case.

TEST=Run unit test and see if any state files remain

Change-Id: If594c7266b2ff24a260e746a4d06bddea2c0bf78
Reviewed-on: https://chrome-internal-review.googlesource.com/265286
Commit-Ready: Cassidy Burden <cburden@google.com>
Tested-by: Cassidy Burden <cburden@google.com>
Reviewed-by: Caroline Tice <cmtice@google.com>
1 file changed