Remove unused empty filegroups from frameworks/base.

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.

Bug: 210586283
Test: m
Merged-In: I2209df4b6f0b4daddc640fc4126ba89601df2c2b
Change-Id: If304e989c668cd816483647a9291968f2f15435d