remove fedora 32 specific (gfortran v10) workaround

eccodes.spec

@@ -224,14 +224,6 @@ cd build
 #        the library so files get installed in /usr/lib in stead
 #        of /usr/lib64 on x86_64.
 
-# Build with -fallow-argument-mismatch for gcc 10 compatibility
-# otherwise the fortran interface fails to compile
-# (thanks for the hint Orion)
-# Reported upstream at https://jira.ecmwf.int/browse/SUP-3081
-# note that setting FCFLAGS is not sufficient, i.e. this doesn't work:
-#     export FCFLAGS="%%{build_fflags} -fallow-argument-mismatch"
-# defining the -DCMAKE_Fortran_FLAGS for camke is required to let it compile.
-
 %cmake3 -DINSTALL_LIB_DIR=%{_lib} \
         -DENABLE_ECCODES_OMP_THREADS=ON \
         -DENABLE_EXTRA_TESTS=ON \
@@ -242,7 +234,6 @@ cd build
         -DCMAKE_SKIP_INSTALL_RPATH=TRUE \
         -DECCODES_SOVERSION=%{so_version} \
         -DECCODES_SOVERSION_F90=%{so_version_f90} \
-        -DCMAKE_Fortran_FLAGS="-fallow-argument-mismatch" \
         -DENABLE_PYTHON=OFF \
         ..
 
@@ -347,7 +338,7 @@ ctest3 -V %{?_smp_mflags}
 %doc %{_datadir}/doc/%{name}/
 
 %changelog
-* Sat Feb 08 2020 Jos de Kloe <josdekloe@gmail.com> - 2.16.0-1
+* Sun Feb 09 2020 Jos de Kloe <josdekloe@gmail.com> - 2.16.0-1
 - Upgrade to upstream version 2.16.0
 
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.15.0-2