Remove no_size_t_to_int_warning in //url

Bug: 167187
Change-Id: Ia2e184751c33c5894d7e20271b97d693a2062cae
Reviewed-on: https://chromium-review.googlesource.com/c/1392330Reviewed-by: Victor Costan <pwnall@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#619783}

url/BUILD.gn

@@ -57,11 +57,6 @@ component("url") {
 
   defines = [ "IS_URL_IMPL" ]
 
-  configs += [
-    # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
-    "//build/config/compiler:no_size_t_to_int_warning",
-  ]
-
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
@@ -164,9 +159,6 @@ test("url_unittests") {
     deps += [ "//third_party/icu:icuuc" ]
   }
 
-  # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
-  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
-
   if (!is_ios) {
     deps += [
       "//mojo/core/embedder",