ui: Don't always re-symlink node_modules am: 6186c8725f am: 89547f87e0
ui: Don't always re-symlink node_modules am: 6186c8725f
am: 89547f87e0

Change-Id: I23c1204d28c7a211fdbc30f31d292ba7ad7d256f

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto