Remove ocp-enb/split73

CMakeLists.txt

ci-scripts/main.py

ci-scripts/ran.py

...cripts/xml_files/enb_ocp_usrp210_band7_test_05mhz_tm1.xml

ci-scripts/xml_files/enb_ocp_usrp210_build.xml

cmake_targets/build_oai

common/utils/assertions.h

doc/Doxyfile

doc/SystemX-tutorial-design.md

executables/create_tasks.c

executables/lte-softmodem.c

executables/main-fs6.c

executables/main-ocp.c

executables/main_ru.c

executables/nr-softmodem.c

executables/softmodem-common.h

executables/split_headers.h

executables/transport_split.c

openair1/PHY/LTE_TRANSPORT/prach.c

openair1/PHY/LTE_TRANSPORT/ulsch_decoding.c