cc: Use optimize_max everywhere, not just win and android.

We generally should use consistent optimization settings across platforms.

Bug: none
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I79cd892056dcfa7338109deb9f689afac2b56072
Reviewed-on: https://chromium-review.googlesource.com/1244021Reviewed-by: danakj <danakj@chromium.org>
Reviewed-by: ccameron <ccameron@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594087}

cc/cc.gni

@@ -11,7 +11,7 @@ cc_add_configs = [
   "//build/config/compiler:wexit_time_destructors",
 ]
 
-if (!is_debug && (is_win || is_android)) {
+if (!is_debug) {
   cc_remove_configs += [ "//build/config/compiler:default_optimization" ]
   cc_add_configs += [ "//build/config/compiler:optimize_max" ]
 }