Remove Gaussian1D, Gaussian1D2 & Linear re #7072

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Remove LoadDAE algorithm re #7072

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Remove BinToMDHistoWorkspace algorithm re #7072

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Merge branch 'feature/7072_remove_deprecated_algorithms' into develop