Revert of Add DEPS.chromium for recursive DEPS tracking.

DEPS.chromium

Index: DEPS.chromium
diff --git a/DEPS.chromium b/DEPS.chromium
deleted file mode 100644
index b9d6e9ce85123dd4fb8f5d162a7d535694e3efdd..0000000000000000000000000000000000000000
--- a/DEPS.chromium
+++ /dev/null
@@ -1,14 +0,0 @@
-# This file is used by the Chromium dependency system to pull in V8 dependencies
-# not used by Chromium directly.
-#
-# If you make a change to the dependencies below, the corresponding DEPS file
-# for v8 must also be changed.
-
-vars = {
-  "chromium_url": "https://chromium.googlesource.com",
-}
-
-deps = {
-  "src/v8/test/cctest/traces-arm64":
-    Var("chromium_url") + "/external/git.linaro.org/arm/vixl-simulator-traces.git" + "@" + "6168e7e1eec52c9cb0a62f87f94df0582dc48aa8",
-}