Remove MAGMA from compute directory

compute/pzgelqf.c

compute/pzgelqfrh.c

compute/pzgeqrf.c

compute/pzgeqrfrh.c

compute/pzgetrf_incpiv.c

compute/pzhetrd_he2hb.c

compute/pzpotrf.c

compute/pzpotrimm.c

compute/pztpqrt.c