Refactor timeout
Refactor timeout

Job DSL 1.30 added support for the abortBuild option of timeout
plugin, so we don't need our workaround anymore.

Change-Id: Icd2d07e463afad6007dc17f38d92c1d19d0c9ab4

sillsdev/ci-builder-scripts,sillsdev/ci-builder-scripts,sillsdev/ci-builder-scripts