Remove unnecessary task variables
Remove unnecessary task variables

[#101452996](https://www.pivotaltracker.com/story/show/101452996)

Signed-off-by: Xuebin He <a24423da5583aa8407f2dcc30b6a21a9dc802b67@emc.com>

cloudfoundry-incubator/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release