Removed unit test for return_intensity(), since this is no longer in use.
Regarding bug #21344, (https://gna.org/bugs/index.php?21344) - Handling of in sparse acquired R1rho dataset with missing combinations of time and spin-lock field strengths.
Reference: http://www.mail-archive.com/relax-devel@.../msg05020.html
Authored by: tlinnet 2014-02-28
Parent: [r22370]
Child: [r22372]
