android: don't export unnecessary symbols.

testing/android/native_test.gyp

Index: testing/android/native_test.gyp
diff --git a/testing/android/native_test.gyp b/testing/android/native_test.gyp
index 7d0ebc8919301db1790613273229bd63af3150db..632d6871db72559bab0ef34bf9f86d5d523b51dd 100644
--- a/testing/android/native_test.gyp
+++ b/testing/android/native_test.gyp
@@ -16,13 +16,6 @@
             'native_test_launcher.cc',
             'native_test_launcher.h',
           ],
-          'direct_dependent_settings': {
-            'ldflags!': [
-              # JNI_OnLoad is implemented in a .a and we need to
-              # re-export in the .so.
-              '-Wl,--exclude-libs=ALL',
-            ],
-          },
           'dependencies': [
             '../../base/base.gyp:base',
             '../../base/base.gyp:test_support_base',