Scons: Remove duplication of VALIDATOR_LIBS list and use library_deps.py instead

tests/trusted_crash/osx_crash_forwarding/nacl.scons

Index: tests/trusted_crash/osx_crash_forwarding/nacl.scons
diff --git a/tests/trusted_crash/osx_crash_forwarding/nacl.scons b/tests/trusted_crash/osx_crash_forwarding/nacl.scons
index 8d97bf64010f8b54b2201be2cc5ff0a06b91a388..ff652ad67516aff742c7a7affbc03312b1e41d05 100644
--- a/tests/trusted_crash/osx_crash_forwarding/nacl.scons
+++ b/tests/trusted_crash/osx_crash_forwarding/nacl.scons
@@ -23,12 +23,6 @@ trusted_env = env['TRUSTED_ENV']
 # This duplicates the library list in src/trusted/service_runtime/build.scons.
 # We would not have to do this if we could get Scons to track dependencies
 # between libraries.
-VALIDATOR_LIBS = []
-if trusted_env.Bit('target_x86'):
-  VALIDATOR_LIBS += [trusted_env.NaClTargetArchSuffix('ncvalidate')]
-elif trusted_env.Bit('target_arm'):
-  VALIDATOR_LIBS += ['ncvalidate_arm_v2']
-
 runner = trusted_env.ComponentProgram(
     'mach_crash_forwarding_test', ['mach_crash_forwarding_test.c'],
     EXTRA_LIBS=['sel',
@@ -48,7 +42,7 @@ runner = trusted_env.ComponentProgram(
                 'platform',
                 'platform_qual_lib',
                 'gio',
-                ] + VALIDATOR_LIBS)
+                ])
 
 untrusted_caught_nexe = env.File('${STAGING_DIR}/exception_test${PROGSUFFIX}')
 untrusted_crash_nexe = env.File('${STAGING_DIR}/crash_test${PROGSUFFIX}')