Remove unused parameters from LibyuvFactory.
Remove unused parameters from LibyuvFactory.

Since they're identical to the default values in `def BuildFactory` in
GClientFactory, remove these parameters completely.

Makes it a bit easier to see which of the parameters of `def BuildFactory` are
actually used.

BUG=314253

Review URL: https://codereview.chromium.org/99213008

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@240914 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build