[tools/perf] Remove generated_profiles

Looking through `git log` it appears these were used in the past for a
benchmark that no longer exists.

TBR=crouleau@chromium.org

Bug: 921000
Change-Id: I8d77e167cf5dc244552bb7ecfdc0f83dadabf9f8
Reviewed-on: https://chromium-review.googlesource.com/c/1489197Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Juan Antonio Navarro Pérez <perezju@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635573}

tools/perf/generated_profiles/darwin/large_profile.zip.sha1

-d40189a1f471213d06314aaa2095bc35c1027f0c
\ No newline at end of file

tools/perf/generated_profiles/linux2/large_profile.zip.sha1

-00afe3f1eb2624db9ff71bdf99f589e8383be2d0
\ No newline at end of file

tools/perf/generated_profiles/win32/large_profile.zip.sha1

-d7d2b8e928e63079e4f1e97e9d8a36518cc4a443
\ No newline at end of file