remove pbzip2 installation from startup for highspec

highspec/startup.sh

@@ -3,11 +3,6 @@
 # update yum
 yum update -y
 
-# install dependencies
-wget $PBZIP_BASE_URL/$PBZIP_PACKAGE
-yum install $PBZIP_PACKAGE -y
-rm $PBZIP_PACKAGE
-
 # get the SSD device name
 device=$(lsblk | grep nvme0n1 | cut -d' ' -f1)