remove plugin dir from jenkins-plugin-ci install

A previous commit added arguments to specify the plugin
directory as well as path to the java war for Jenkins to
the jenkins-plugin-cli command used to install our custom
plugins.

For some reason, the version appeared to be ignored on the
last build, which prevented Jenkins from being able to boot.
Let's remove the '-d' argument and let the installer figure
it out on its own.

Also it seems a plugin was specifying an earlier version of
matrix-auth, which seemed to override the version explicitly
named in the plugins.txt file.  Let's try moving our listing
of matrix-auth to the very last position to make sure we
override whatever is overriding us.

Signed-off-by: Kelley Spoon <kelley.spoon@linaro.org>
Change-Id: Ib44f20225defb015314c1951781325e9763193a1
2 files changed