livepatch: no need to build kselftests with kernel

JIRA: https://issues.redhat.com/browse/RHEL-70905
Upstream Status: RHEL only
ARK: 2047e6f4ea6f

Remove livepatch kselftest .ko creation from the kernel spec / build.

These kselftests modules are now built dynamically during testing using tools
provided by an external repository. As a result, the manual build in the spec
file is no longer necessary.

This patch removes the manual kselftests build logic from the kernel
RPM spec file.

V2: Keep a copy of Module.symvers in $DevelDir for other selftests
    as they depend on it.

Signed-off-by: Radomir Vrbovsky <rvrbovsk@redhat.com>

Author: emmil

redhat/kernel.spec.template

@@ -615,9 +615,6 @@ Summary: The Linux kernel
 %define cpupowerarchs i686 x86_64 ppc64le aarch64
 %endif
 
-# Architectures we build kernel livepatching selftests on
-%define klptestarches x86_64 ppc64le s390x
-
 %if 0%{?use_vdso}
 %define _use_vdso 1
 %else
@@ -3206,13 +3203,6 @@ TARGETS="bpf cgroup mm net net/forwarding net/mptcp net/netfilter net/packetdril
 %define _fortify_level %{_fortify_level_bak}
 export CFLAGS="%{build_cflags}"
 
-%ifarch %{klptestarches}
-	# kernel livepatching selftest test_modules will build against
-	# /lib/modules/$(shell uname -r)/build tree unless KDIR is set
-	export KDIR=$(realpath $(pwd)/../../..)
-	%{make} %{?_smp_mflags} ARCH=$Arch V=1 TARGETS="livepatch" SKIP_TARGETS="" $force_targets VMLINUX_H="${RPM_VMLINUX_H}" && TARGETS="${TARGETS} livepatch" || true
-%endif
-
 # We must install all the targets in a single step as each `make install`
 # command overrides the kselftest-list.txt file.
 %{make} ARCH=$Arch TARGETS="${TARGETS}" SKIP_TARGETS="" $force_targets INSTALL_PATH=%{buildroot}%{_libexecdir}/kselftests install
@@ -3581,12 +3571,6 @@ find -type d -exec install -d %{buildroot}%{_libexecdir}/kselftests/tc-testing/{
 find -type f -executable -exec install -D -m755 {} %{buildroot}%{_libexecdir}/kselftests/tc-testing/{} \;
 find -type f ! -executable -exec install -D -m644 {} %{buildroot}%{_libexecdir}/kselftests/tc-testing/{} \;
 popd
-# install livepatch selftests
-pushd tools/testing/selftests/livepatch
-find -type d -exec install -d %{buildroot}%{_libexecdir}/kselftests/livepatch/{} \;
-find -type f -executable -exec install -D -m755 {} %{buildroot}%{_libexecdir}/kselftests/livepatch/{} \;
-find -type f ! -executable -exec install -D -m644 {} %{buildroot}%{_libexecdir}/kselftests/livepatch/{} \;
-popd
 # install net/netfilter selftests
 pushd tools/testing/selftests/net/netfilter
 find -type d -exec install -d %{buildroot}%{_libexecdir}/kselftests/net/netfilter/{} \;