Revert "docs: move label directly before title"

gcc/fortran/doc/gfortran/intrinsic-procedures/abs.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/acos.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/acosd.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/acosh.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/aimag.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/aint.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/anint.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/asin.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/asind.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/asinh.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/atan.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/atan2.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/atan2d.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/atand.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/atanh.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/besselj0.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/besselj1.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/besseljn.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/bessely0.rst

gcc/fortran/doc/gfortran/intrinsic-procedures/bessely1.rst