Remove unused empty filegroups from connectivityT package.

connectivity-tiramisu-sources filegroup in the framework-t and service
folder is useless after moving all source files to updatable-sources
filegroup, delete them from f/b/packages/connectivityT.

Bug: 210586283
Test: m
Change-Id: I22e9a70a04929144488380d1530cd7baa78ce056
2 files changed