Revert "Add a whitespace.txt file"

This reverts commit 6703fe287670abf0e3473230bd1cdd551ab4107f.

Reason for revert: Builders flipped, triggering first LUCI job

Original change's description:
> Add a whitespace.txt file
> 
> Bug: 869249
> Change-Id: Iab9eeade2427255ce167fb524b11e0e3f691a685
> Reviewed-on: https://chromium-review.googlesource.com/1161382
> Reviewed-by: Frank Barchard <fbarchard@chromium.org>
> Commit-Queue: Ryan Tseng <hinoka@chromium.org>
> Commit-Queue: Frank Barchard <fbarchard@chromium.org>

TBR=hinoka@chromium.org,fbarchard@chromium.org
No-Try: True

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 869249
Change-Id: I00a29051b8a1be048afe444cd7811b19c949fd85
Reviewed-on: https://chromium-review.googlesource.com/1167906
Reviewed-by: Ryan Tseng <hinoka@chromium.org>
diff --git a/whitespace.txt b/whitespace.txt
deleted file mode 100644
index 79abaa3..0000000
--- a/whitespace.txt
+++ /dev/null
@@ -1 +0,0 @@
-Use this file to trigger builds