Remove DumpHelper as the bug is fixed

Bug: skia:7436
Change-Id: I1dd09eb2b2d07f13b1ace01259791d8e0ce26ae8
Reviewed-on: https://skia-review.googlesource.com/92702
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
2 files changed