Remove SoftwareFrameData

We never transmit software frames over IPC anymore, so this is unnecessary.

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1265243004

Cr-Commit-Position: refs/heads/master@{#342265}
35 files changed