Changes

Remove obsolete files. (#1242)

* Remove obsolete files.

  - Start removing files which have been made obsolete by the recent move
    to the CMake based build system.

* Remove the top level Makefile

* Remove the OMTLMSimulator submodule

  - There are some tlm testfiles left in the testsuite. I am not sure how
    to filter them out and remove them. I do not think they were being tested
    but there might be some remnants of tlm left in there.

    At least, tlm is now disabled by default (-notlm for partest). We need
    to completely remove the flag at some point.