cleanup a few remanent s390 arch defines

kernel.spec

@@ -219,7 +219,7 @@ Summary: The Linux kernel
 
 %if %{with_vdso_install}
 # These arches install vdso/ directories.
-%define vdso_arches %{all_x86} x86_64 %{power64} s390 s390x aarch64
+%define vdso_arches %{all_x86} x86_64 %{power64} s390x aarch64
 %endif
 
 # Overrides for generic default options
@@ -329,7 +329,7 @@ Summary: The Linux kernel
 # Which is a BadThing(tm).
 
 # We only build kernel-headers on the following...
-%define nobuildarches i386 s390
+%define nobuildarches i386
 
 %ifarch %nobuildarches
 %define with_up 0
@@ -364,7 +364,7 @@ Version: %{rpmversion}
 Release: %{pkg_release}
 # DO NOT CHANGE THE 'ExclusiveArch' LINE TO TEMPORARILY EXCLUDE AN ARCHITECTURE BUILD.
 # SET %%nobuildarches (ABOVE) INSTEAD
-ExclusiveArch: %{all_x86} x86_64 ppc64 ppc64p7 s390 s390x %{arm} aarch64 ppc64le
+ExclusiveArch: %{all_x86} x86_64 ppc64 ppc64p7 s390x %{arm} aarch64 ppc64le
 ExclusiveOS: Linux
 %ifnarch %{nobuildarches}
 Requires: kernel-core-uname-r = %{KVERREL}%{?variant}
@@ -385,7 +385,7 @@ BuildRequires: sparse
 %if %{with_perf}
 BuildRequires: zlib-devel binutils-devel newt-devel python-devel perl(ExtUtils::Embed) bison flex xz-devel
 BuildRequires: audit-libs-devel
-%ifnarch s390 s390x %{arm}
+%ifnarch s390x %{arm}
 BuildRequires: numactl-devel
 %endif
 %endif