How to uninstall spark in Centos7

I used command for

sudo  rpm -e spark

but getting package spark is not installed

i also remove file in --

sudo rm -rf /user/share/spark

when i install again it say using command

sudo rpm -ivh spark-2.8.1 it say package spark-2.8.1.893-1.x86_64 is already installed

it say package spark-2.8.1.893-1.x86_64 is already installed .

Please let me how to fully remove spark and installed again