Documentation/Makefile: Removed additional calls to doc generation
Documentation/Makefile: Removed additional calls to doc generation

The documentation build process is now automatically called during the
sphinx build therefore the addtional calls from the Makefile have been
removed.

bjackman/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,bjackman/workload-automation