More old files deletion.

This does further pruning in ui/base, ui/gfx, and the chromium resource strings and images. It also entirely
removes the use_aura flag from the gn files.

BUG=443439
TBR=sky@chromium.org

Review URL: https://codereview.chromium.org/854713003

test/test_suite.cc

diff --git a/test/test_suite.cc b/test/test_suite.cc
index a6fc201..383b82c 100644
--- a/test/test_suite.cc
+++ b/test/test_suite.cc
@@ -135,12 +135,12 @@
   testing::GTEST_FLAG(catch_exceptions) = false;
 #endif
   base::EnableTerminationOnHeapCorruption();
-#if defined(OS_LINUX) && defined(USE_AURA)
+#if defined(OS_LINUX) && !defined(OS_ANDROID)
   // When calling native char conversion functions (e.g wrctomb) we need to
   // have the locale set. In the absence of such a call the "C" locale is the
   // default. In the gtk code (below) gtk_init() implicitly sets a locale.
   setlocale(LC_ALL, "");
-#endif  // defined(OS_LINUX) && defined(USE_AURA)
+#endif  // defined(OS_LINUX) && !defined(OS_ANDROID)
 
   // On Android, AtExitManager is created in
   // testing/android/native_test_wrapper.cc before main() is called.