Fix linking chrome.dll when building browser_tests on win

The problem is that browser_tests depends on //chrome:chrome_dll.
After changing one file (lets say in ch/br/) both
chrome.dll and browser_tests.exe will be linked.
It's unnecessary and takes a lot of time.

The CL remove the redundant dependency.

Change-Id: I9886bbfc149e89bf42d27d976383d08f2262fed2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2066739
Auto-Submit: Mikhail Atuchin <atuchin@yandex-team.ru>
Commit-Queue: Ken Rockot <rockot@google.com>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#743157}

chrome/app/BUILD.gn

@@ -154,7 +154,6 @@ static_library("test_support") {
 
   if (is_win) {
     deps += [
-      "//chrome:chrome_initial",
       "//chrome/chrome_elf:test_stubs",
       "//chrome/install_static:install_static_util",
       "//components/browser_watcher:stability_client",