tree b59b150616f9a826c3dc40fb0a80bfffed96ef10
parent b85b33e2b9ce12e659c66ee8f8449180d7a9d532
author Takashi Kajinami <kajinamit@oss.nttdata.com> 1725495500 +0900
committer Takashi Kajinami <kajinamit@oss.nttdata.com> 1725495787 +0000

Drop CentOS 7 jobs

All CentOS 7 jobs were replaced by CentOS 8 jobs during Ussuri cycle.
Now Train is EOL and none of open branches (including unmaintained ones)
run jobs using CentOS 7.

Change-Id: I82c251836fc1f12351f05b80dd9550953d65c493