Remove transitive dependency on //base/test:test_support

https://crrev.com/c/1649369 introduced a transitive dependency on
//base/test:test_support, I guess presubmit checks do not run here so
the submit did not fail on that patch.

Change-Id: I30291b3d192041339179e9599bec097ef87c27c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1649585Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Commit-Queue: Carlos Caballero <carlscab@google.com>
Cr-Commit-Position: refs/heads/master@{#667180}

third_party/libaddressinput/BUILD.gn

@@ -278,6 +278,7 @@ test("libaddressinput_unittests") {
     ":test_support",
     ":util",
     "//base/test:run_all_unittests",
+    "//base/test:test_support",
     "//components/prefs",
     "//mojo/core/embedder",
     "//net:test_support",