Android remove/uninstall system app with TWRP and ADB

#Android remove/uninstall system app with TWRP and ADB
#once booted into TWRP, mount system as writable.

#example, removing Google Photos (dir my be /system/app/ on some systems)
cd /system/system/app/
rm -rf Photos
cd /data/data/
rm -fr com.google.android.apps.photos