Recipes: Remove depot_tools path hack

Bug: skia:6473
Change-Id: I722059844bb0bc9d58347b4f6002ee62043b9e20
Reviewed-on: https://skia-review.googlesource.com/13006
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
8 files changed