do not require Trilinos for matrix_free tests which do not use it

diff --git a/tests/matrix_free/parallel_multigrid.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=3.output b/tests/matrix_free/parallel_multigrid.with_mpi=true.with_p4est=true.mpirun=3.output
similarity index 100%
rename from tests/matrix_free/parallel_multigrid.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=3.output
rename to tests/matrix_free/parallel_multigrid.with_mpi=true.with_p4est=true.mpirun=3.output

diff --git a/tests/matrix_free/parallel_multigrid.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=7.output b/tests/matrix_free/parallel_multigrid.with_mpi=true.with_p4est=true.mpirun=7.output
similarity index 100%
rename from tests/matrix_free/parallel_multigrid.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=7.output
rename to tests/matrix_free/parallel_multigrid.with_mpi=true.with_p4est=true.mpirun=7.output

diff --git a/tests/matrix_free/parallel_multigrid_adaptive_01.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=3.output b/tests/matrix_free/parallel_multigrid_adaptive_01.with_mpi=true.with_p4est=true.mpirun=3.output
similarity index 100%
rename from tests/matrix_free/parallel_multigrid_adaptive_01.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=3.output
rename to tests/matrix_free/parallel_multigrid_adaptive_01.with_mpi=true.with_p4est=true.mpirun=3.output

diff --git a/tests/matrix_free/parallel_multigrid_adaptive_01.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=7.output b/tests/matrix_free/parallel_multigrid_adaptive_01.with_mpi=true.with_p4est=true.mpirun=7.output
similarity index 100%
rename from tests/matrix_free/parallel_multigrid_adaptive_01.with_trilinos=true.with_mpi=true.with_p4est=true.mpirun=7.output
rename to tests/matrix_free/parallel_multigrid_adaptive_01.with_mpi=true.with_p4est=true.mpirun=7.output