[LiquidFlow] Remove pcs_0 from file names.

ProcessLib/LiquidFlow/Tests.cmake

Tests/Data/Parabolic/LiquidFlow/AxiSymTheis/axisym_theis.prj

Tests/Data/Parabolic/LiquidFlow/BuildupTest/buildup_test.prj

...standard_solution_buildup_test_ts_107_t_424800.000000.vtu

...standard_solution_buildup_test_ts_211_t_720000.000000.vtu

...2D/LF_square_1e1_surfaceflux_ts_1_t_0.432000_expected.vtu

...2D/LF_square_1e1_surfaceflux_ts_2_t_0.864000_expected.vtu

...re_1x1_tri_1.8e1_surfaceflux_ts_1_t_0.432000_expected.vtu

...re_1x1_tri_1.8e1_surfaceflux_ts_2_t_0.864000_expected.vtu

...id_6000_calculatesurfaceflux_ts_1_t_0.432000_expected.vtu

...id_6000_calculatesurfaceflux_ts_2_t_0.864000_expected.vtu

...ube_1e3_calculatesurfaceflux_ts_0_t_0.000000_expected.vtu

...ube_1e3_calculatesurfaceflux_ts_1_t_0.432000_expected.vtu

...ube_1e3_calculatesurfaceflux_ts_2_t_0.864000_expected.vtu

...ata/Parabolic/LiquidFlow/GravityDriven/gravity_driven.prj

...quidFlow/GravityDriven3D/anisotropic_gravity_driven3D.prj

...LiquidFlow/GravityDriven3D/isotropic_gravity_driven3D.prj

...dFlow/LineDirichletNeumannBC/line_dirichlet_neumannBC.prj

...opicSquare/pressureBC_at_corner_of_anisotropic_square.prj

...SimpleSynthetics/LF_constraint_bc_1e3_ts_1_t_0.000000.vtu