[THM/Ctest] Drop the reference temperature input

Tests/Data/ThermoHydroMechanics/A2/A2.prj

...droMechanics/Linear/Beam_sealed_bimaterial/square_1e2.prj

...oMechanics/Linear/Beam_unsealed_bimaterial/square_1e2.prj

...ansportInStationaryFlow/HeatTransportInStationaryFlow.prj

...cs/Linear/Point_injection/pointheatsource_linear-mesh.prj

...Linear/Point_injection/pointheatsource_quadratic-mesh.prj

...Mechanics/Linear/Square_sealed_homogeneous/square_1e0.prj

...droMechanics/Linear/Storage/cube_incompressible_fluid.prj

...oHydroMechanics/Linear/Storage/cube_isochoric_heat-up.prj

...ear/anisotropic_thermal_expansivity/cube_ortho_phi0.0.prj

...r/anisotropic_thermal_expansivity/cube_ortho_phi0.183.prj

...r/anisotropic_thermal_expansivity/square_ortho_phi0.0.prj

...anisotropic_thermal_expansivity/square_ortho_phi0.183.prj

...Mechanics/Linear/verification/thm2_1Dfixd/thm2_1Dfixd.prj