Removing of old code and adding in new comments.

Removing of old code and adding in new comments.

src/cpu/base_dyn_inst.cc:
    Clean up old functions, comments.
src/cpu/o3/alpha_cpu_builder.cc:
src/cpu/o3/alpha_params.hh:
src/cpu/o3/cpu.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/iew.hh:
src/cpu/o3/iew_impl.hh:
src/cpu/o3/lsq.hh:
src/cpu/o3/lsq_impl.hh:
src/cpu/o3/rename_impl.hh:
src/cpu/ozone/lsq_unit.hh:
src/cpu/ozone/lsq_unit_impl.hh:
    Remove old commented code.
src/cpu/o3/fetch.hh:
    Remove old commented code, add in comments.
src/cpu/o3/inst_queue_impl.hh:
    Move comment to better place.
src/cpu/o3/lsq_unit.hh:
    Remove old commented code, add in new comments.
src/cpu/o3/lsq_unit_impl.hh:
    Remove old commented code, rename variable.

--HG--
extra : convert_revision : 8e79af9b4d3b3bdd0f55e4747c6ab64c9ad2f571