setup_links.py: Always link to base + cleanup.

setup_links.py

Index: setup_links.py
diff --git a/setup_links.py b/setup_links.py
index 6856ec617fd0e084e41484db8a35c2ff8f38d28b..3f6b0b9e168b5980e391ff170b0db42ebcfd7a9a 100755
--- a/setup_links.py
+++ b/setup_links.py
@@ -29,6 +29,7 @@ import textwrap
 
 
 DIRECTORIES = [
+  'base',
   'build',
   'buildtools',
   'testing',
@@ -82,7 +83,6 @@ from sync_chromium import get_target_os_list
 target_os = get_target_os_list()
 if 'android' in target_os:
   DIRECTORIES += [
-    'base',
     'third_party/accessibility_test_framework',
     'third_party/android_platform',
     'third_party/android_support_test_runner',
@@ -113,18 +113,9 @@ if 'android' in target_os:
     'third_party/sqlite4java',
     'third_party/tcmalloc',
     'tools/android',
-    'tools/telemetry',
   ]
-else:
-  DIRECTORIES += [
-    'base/third_party/libevent',
-  ]
-
-if 'ios' in target_os:
-  DIRECTORIES.append('third_party/class-dump')
 
 FILES = {
-  'tools/isolate_driver.py': None,
   'third_party/BUILD.gn': None,
 }