remove unused ignore_run_exports, don't refer to -ng packages

[conda-forge-admin]

Xref: conda-forge/ctng-compilers-feedstock#148

Fixes #11

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

[h-vetinari]

@conda-forge/ambit, this should be ready, PTAL! :)

I don't know where the ignored run-export came from originally, but hdf5 is not exporting dependencies on fortran stuff (only itself). Compare the link-check output from this PR:

   INFO: sysroot: '/home/conda/feedstock_root/build_artifacts/ambit-split_1723788075924/_build_env/x86_64-conda-linux-gnu/sysroot/' files: '['usr/share/zoneinfo', 'usr/share/locale/zh_TW/LC_MESSAGES/libc.mo', 'usr/share/locale/zh_CN/LC_MESSAGES/libc.mo', 'usr/share/locale/vi/LC_MESSAGES/libc.mo']'
   INFO (ambit,lib/libambit.so): Needed DSO lib/libhdf5.so.310 found in conda-forge/linux-64::hdf5==1.14.3=nompi_hdf9ad27_105
   INFO (ambit,lib/libambit.so): Needed DSO lib/liblapack.so.3 found in conda-forge/linux-64::liblapack==3.9.0=6_ha36c22a_netlib
   INFO (ambit,lib/libambit.so): Needed DSO lib/libblas.so.3 found in conda-forge/linux-64::libblas==3.9.0=6_ha36c22a_netlib
   INFO (ambit,lib/libambit.so): Needed DSO lib/libstdc++.so.6 found in conda-forge/linux-64::libstdcxx-ng==14.1.0=hc0a3c3a_0
   INFO (ambit,lib/libambit.so): Needed DSO x86_64-conda-linux-gnu/sysroot/lib64/libm.so.6 found in CDT/compiler package conda-forge/noarch::sysroot_linux-64==2.17=h4a8ded7_16
   INFO (ambit,lib/libambit.so): Needed DSO lib/libgomp.so.1 found in conda-forge/linux-64::_openmp_mutex==4.5=2_gnu
   INFO (ambit,lib/libambit.so): Needed DSO lib/libgcc_s.so.1 found in conda-forge/linux-64::libgcc-ng==14.1.0=h77fa898_0
   INFO (ambit,lib/libambit.so): Needed DSO x86_64-conda-linux-gnu/sysroot/lib64/libc.so.6 found in CDT/compiler package conda-forge/noarch::sysroot_linux-64==2.17=h4a8ded7_16
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