build.sh: Set BUILD_JOB even when building on anaconda (v3.3.26)
build.sh: Set BUILD_JOB even when building on anaconda (v3.3.26)

:Release Notes:
Fix parsing JOB_NAME when --job wasn't passed as parameter when building
on anaconda.

:Detailed Notes:
In original version we were unsetting whole JENKINS_URL on anaconda, but
we still need to parse BUILD_JOB when it wasn't passed in --job param by
jenkins-job.sh. Remove unused BUILD_TYPE variable.

:Testing Performed:
Only build tested.

:QA Notes:
No change to image.

:Issues Addressed:

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: I95be4cbbf08b82b6bf149f1797204601e84dae67
Reviewed-on: https://g2g.palm.com/6172
Reviewed-by: DCO Verification
Build: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@lge.com>
Reviewed-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@lge.com>
Tested-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <be0b8b1fe2cc6a744be9b1ae6516e077aa323e09@lge.com>

openwebos/build-webos,hyunkim9123/build-webos,openwebos/build-webos,hyunkim9123/build-webos,aeg-aeg/mywebOS,aeg-aeg/mywebOS