Revert "Add UrlSpanFactory to Linkify"

This reverts commit ad4883bb1b2a3e5e0c3a6345ee0ab05e4c1e4a43.

Reason for revert: b/111218263

Bug: 28536972
Bug: 32613009
Bug: 29150779
Change-Id: Idc1621d472d742929f56d10d72b077b774b9e56e
2 files changed