removed old laugh_tests. These are now in their own separate repo

...augh_tests/BE/celia1990/config/Summa_Actors_Settings.json

...augh_tests/BE/celia1990/forcing_data/celia1990_forcing.nc

utils/laugh_tests/BE/celia1990/output/runinfo.txt

...celia1990/output/summa-actors_celia1990GRU1-1_timestep.nc

...ests/BE/celia1990/output/summa_celia1990_G1-1_timestep.nc

utils/laugh_tests/BE/celia1990/plot_lt_celia1990.ipynb

utils/laugh_tests/BE/celia1990/run_test_summa.sh

utils/laugh_tests/BE/celia1990/run_test_summa_actors.sh

utils/laugh_tests/BE/celia1990/run_valgrind_celia.sh

utils/laugh_tests/BE/celia1990/settings/GENPARM.TBL

utils/laugh_tests/BE/celia1990/settings/MPTABLE.TBL

utils/laugh_tests/BE/celia1990/settings/Model_Output.txt

utils/laugh_tests/BE/celia1990/settings/SOILPARM.TBL

utils/laugh_tests/BE/celia1990/settings/VEGPARM.TBL

...sts/BE/celia1990/settings/summa_fileManager_celia1990.txt

...celia1990/settings/summa_fileManager_verify_celia1990.txt

...ugh_tests/BE/celia1990/settings/summa_zBasinParamInfo.txt

...ests/BE/celia1990/settings/summa_zDecisions_celia1990.txt

...gh_tests/BE/celia1990/settings/summa_zForcingFileList.txt

...ts/BE/celia1990/settings/summa_zForcingInfo_celia1990.txt