Revert "(bug 46366) Use SnakFormatter for diffs and summaries"

I am not sure if/why this patch is a problem for travis, but let's see if this makes travis happy

This reverts commit 7f6f9743d12c90630ef10fb808dc49e8ee33ba1a.

Change-Id: I92acafd1e435e0d832dca5072a4f66d1d55a20bd
Merge "Revert "(bug 46366) Use SnakFormatter for diffs and summaries""