Removed unused versions of benchmarks

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_opt/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_opt/io.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_opt/kernel.cl

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_opt/main.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_sh/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_sh/io.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_sh/main.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc/io.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc/main.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc_vec/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc_vec/io.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_tc_vec/main.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec/io.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec/kernel.cl

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec/main.cc

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec_opt/Makefile

hpvm/test/parboil/benchmarks/sgemm/src/hpvm_vec_opt/io.cc

.../test/parboil/benchmarks/sgemm/src/hpvm_vec_opt/kernel.cl