[SB Refactor] Delete ConnectivityInfoProcessor.

Now that the wifi pipeline is hooked up to real views, the logging is
happening via those real views and we don't need this class anymore.

Bug: 238425913
Test: manual: build SysUI and verify wifi icon with new pipeline still
works
Test: statusbar.pipeline tests

Change-Id: Ifc984e29805294d594f9fca4073f2f86a219dffd