The Batch Script will allow you to bulk delete G Suite users that are located in the "BAT-DeleteUsers.csv" file.
======
BAT-DeleteUsers.bat
======
@ECHO OFF
CLS
ECHO --------------------------------------------------
ECHO Deleting user(s) from the file BAT-DeleteUsers.csv
ECHO --------------------------------------------------
FOR /F %%A IN (BAT-DeleteUsers.csv) DO gam.exe delete user %%A
:END
ECHO -----------------------------------------------------------
ECHO Finished Deleting user(s) from the file BAT-DeleteUsers.csv
ECHO -----------------------------------------------------------
Pause