Tweaks to roll_deps.py.

Removes a few repos that are no longer in DEPS. Also remove fuchsia_sdk
as it's not avaiable by default on some platforms and isn't really part
of Chromium.

Bug: angleproject:4176
Change-Id: I141213811c085b4281f64d93a14eb4a2b83e005e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1940567
Reviewed-by: Jamie Madill <jmadill@chromium.org>

scripts/roll_deps.py

@@ -34,17 +34,13 @@ ANGLE_CHROMIUM_DEPS = [
     'build',
     'buildtools',
     'testing',
-    'third_party/fuchsia-sdk',
     'third_party/googletest',
-    'third_party/googletest/src',
     'third_party/libjpeg_turbo',
     'third_party/jsoncpp',
-    'third_party/jsoncpp/source',
     'third_party/Python-Markdown',
     'third_party/qemu-linux-x64',
     'third_party/qemu-mac-x64',
     'third_party/yasm',
-    'third_party/yasm/source/patched-yasm',
     'third_party/zlib',
     'tools/clang',
     'tools/md_browser',