Repo cleanup required

[pmbohm]

There is a fog of unused files that would make it hard to choose a style to apply to layers, and a couple of issues waiting to happen in this repo
The following list came from running https://github.com/landryb/geoserver-datadir-checker

Layer 'csiro_cars_monthly_url' (LayerInfoImpl--5360df55:155d8796886:-7db6) references a non-existent defaultstyle: StyleInfoImpl--396ecd48:155a40f3d82:-7ffc
Layer 'csiro_cars_weekly_url' (LayerInfoImpl--5360df55:155d8796886:-7db8) references a non-existent defaultstyle: StyleInfoImpl--396ecd48:155a40f3d82:-7ffc
Layer 'srs_ghrsst_l3s_1d_day_url' (LayerInfoImpl--7b175bdd:159b4e6e1f3:124d) references a non-existent defaultstyle: StyleInfoImpl--28ae9436:15722231f36:-7ffb

Style 'soop_asf' (StyleInfoImpl--1e1115e2:1439408283b:3300) isnt referenced by any layer
Style 'sots-asfs' (StyleInfoImpl--2b098722:127feddd1a8:-7fd4) isnt referenced by any layer
Style 'raster' (StyleInfoImpl--3a52b6b4:1428ce0125d:-7ffd) isnt referenced by any layer **(this is ok!!!)**
Style 'polygon' (StyleInfoImpl--3a52b6b4:1428ce0125d:-7ffe) isnt referenced by any layer **(this is ok!!!)**
Style 'line' (StyleInfoImpl--3a52b6b4:1428ce0125d:-7fff) isnt referenced by any layer **(this is ok!!!)**
Style 'anmn_nrs_bgc_stations' (StyleInfoImpl--49f425ad:146466cb455:-7ff3) isnt referenced by any layer
Style 'Argo Aggregation' (StyleInfoImpl--59076b8e:13411b94b47:-670f) isnt referenced by any layer
Style 'soop-sst-1min-avg' (StyleInfoImpl--71cfbf25:128a4cd004e:-91f) isnt referenced by any layer
Style 'SRS_OceanColour' (StyleInfoImpl--71e7a485:138da598782:-392a) isnt referenced by any layer
Style 'aatams_ctd_nz_fur_seal' (StyleInfoImpl--7896e2be:13bfdadccbc:-635d) isnt referenced by any layer
Style 'aatams_ctd_southern_e_seal' (StyleInfoImpl--7896e2be:13bfdadccbc:-635e) isnt referenced by any layer
Style 'aatams_ctd_weddell_seal' (StyleInfoImpl--7896e2be:13bfdadccbc:-635f) isnt referenced by any layer
Style 'aatams_ctd_aus_sea_lion' (StyleInfoImpl--7896e2be:13bfdadccbc:-6360) isnt referenced by any layer
Style 'aatams_ctd_aus_fur_seal' (StyleInfoImpl--7896e2be:13bfdadccbc:-6361) isnt referenced by any layer
Style 'bio-optical' (StyleInfoImpl--a1ff436:13578ed8974:-528b) isnt referenced by any layer
Style 'soop_sst_recent' (StyleInfoImpl--fed60a8:1326a401a86:702d) isnt referenced by any layer
Style 'argo_oxygen' (StyleInfoImpl-2d23ec69:126d477e611:-7fd6) isnt referenced by any layer
Style 'soop-co2' (StyleInfoImpl-2d23ec69:126d477e611:-7fd9) isnt referenced by any layer
Style 'ACORN' (StyleInfoImpl-2d23ec69:126d477e611:-7fe2) isnt referenced by any layer
Style 'SOTS_bluewater' (StyleInfoImpl-2d23ec69:126d477e611:-7fe6) isnt referenced by any layer
Style 'anfog-glider' (StyleInfoImpl-2d23ec69:126d477e611:-7fe8) isnt referenced by any layer
Style 'soop-sst' (StyleInfoImpl-2d23ec69:126d477e611:-7fe9) isnt referenced by any layer
Style 'argo_large' (StyleInfoImpl-2d23ec69:126d477e611:-7feb) isnt referenced by any layer
Style 'soop-asf' (StyleInfoImpl-2d23ec69:126d477e611:-7fec) isnt referenced by any layer
Style 'Polygon Default' (StyleInfoImpl-2d23ec69:126d477e611:-7fef) isnt referenced by any layer
Style 'xbt_blue' (StyleInfoImpl-2d23ec69:126d477e611:-7ff4) isnt referenced by any layer
Style 'soop-tmv' (StyleInfoImpl-2d23ec69:126d477e611:-7ff7) isnt referenced by any layer
Style 'argo' (StyleInfoImpl-2d23ec69:126d477e611:-7ffa) isnt referenced by any layer
Style 'soop_ba' (StyleInfoImpl-3a5c507c:1283d7168ec:-29ec) isnt referenced by any layer
Style 'soop_trv' (StyleInfoImpl-505e6e60:136daff1837:1ee1) isnt referenced by any layer
Style 'argo_profile' (StyleInfoImpl-5ac5c1:14303a938b3:-7ffd) isnt referenced by any layer
Style 'aatams_ctd_lime' (StyleInfoImpl-5b3b1ee:13d38d3d2f4:2340) isnt referenced by any layer
Style 'aatams_ctd_brightBlue' (StyleInfoImpl-5b3b1ee:13d38d3d2f4:2341) isnt referenced by any layer
Style 'DSTO_glider' (StyleInfoImpl-5ff7abba:13ea64b12b7:-59cf) isnt referenced by any layer
Style 'anfog-glider-trackonly-completed' (StyleInfoImpl-6e35cfe:12d77262cd4:-7388) isnt referenced by any layer
Style 'srs_oc_soop_rad' (StyleInfoImpl-78823254:13dd358a442:52f) isnt referenced by any layer
Style 'aatams_ctd' (StyleInfoImpl-7d3b8df2:12914d2374a:-175c) isnt referenced by any layer
Style 'srs_occ' (StyleInfoImpl-7d44d2e4:1379b4bb71e:-7ffc) isnt referenced by any layer
Style 'auv_images_temperature' (StyleInfoImpl-b57b2f:12b9e45e3c9:-53df) isnt referenced by any layer

same sha256 (49b0c7a1b2b28faef503d54b8e21cd8005fe7a58b6e361a9eb31654528604c34) for /mnt/ebs/geoserver_123/styles/anfog-glider_v123.sld /mnt/ebs/geoserver_123/workspaces/aodn/styles/aodn_dsto.sld

/mnt/ebs/geoserver_123/styles/anfog-glider_v123.sld is unreferenced
/mnt/ebs/geoserver_123/workspaces/aodn/styles/aodn_dsto.sld is unreferenced