Stop installing lit tests

We don't use these for CI tests any more and extracting the debuginfo
from the unittests is slowing down the builds or causing them to fail
in some cases (s390x).

This also removes the circular depednecy between llvm-test and
python-lit.

llvm.spec

@@ -159,14 +159,6 @@ Static libraries for the LLVM compiler infrastructure.
 Summary:	LLVM regression tests
 Requires:	%{name}%{?_isa} = %{version}-%{release}
 Requires:	%{name}-libs%{?_isa} = %{version}-%{release}
-Requires:	python3-lit
-# The regression tests need gold.
-Requires:	binutils
-# This is for llvm-config
-Requires:	%{name}-devel%{?_isa} = %{version}-%{release}
-# Bugpoint tests require gcc
-Requires:	gcc
-Requires:	findutils
 
 Provides:	llvm-test(major) = %{maj_ver}
 
@@ -327,50 +319,6 @@ cp -R utils/unittest %{install_srcdir}/utils/
 cp utils/update_cc_test_checks.py %{install_srcdir}/utils/
 cp -R utils/UpdateTestChecks %{install_srcdir}/utils/
 
-# One of the lit tests references this file
-install -d %{install_srcdir}/docs/CommandGuide/
-install -m 0644 docs/CommandGuide/dsymutil.rst %{install_srcdir}/docs/CommandGuide/
-
-# Generate lit config files.  Strip off the last lines that initiates the
-# test run, so we can customize the configuration.
-head -n -2 %{_vpath_builddir}/test/lit.site.cfg.py >> %{lit_cfg}
-head -n -2 %{_vpath_builddir}/test/Unit/lit.site.cfg.py >> %{lit_unit_cfg}
-
-# Install custom fedora config file
-cp %{SOURCE4} %{buildroot}%{lit_fedora_cfg}
-
-# Patch lit config files to load custom fedora config:
-for f in %{lit_cfg} %{lit_unit_cfg}; do
-  echo "lit_config.load_config(config, '%{lit_fedora_cfg}')" >> $f
-done
-
-install -d %{buildroot}%{_libexecdir}/tests/llvm
-install -m 0755 %{SOURCE3} %{buildroot}%{_libexecdir}/tests/llvm
-
-# Install lit tests.  We need to put these in a tarball otherwise rpm will complain
-# about some of the test inputs having the wrong object file format.
-install -d %{buildroot}%{_datadir}/llvm/
-
-# The various tar options are there to make sur the archive is the same on 32 and 64 bit arch, i.e.
-# the archive creation is reproducible. Move arch-specific content out of the tarball
-mv %{lit_cfg} %{install_srcdir}/%{_arch}.site.cfg.py
-mv %{lit_unit_cfg} %{install_srcdir}/%{_arch}.Unit.site.cfg.py
-tar --sort=name --mtime='UTC 2020-01-01' -c test/ | gzip -n > %{install_srcdir}/test.tar.gz
-
-# Install the unit test binaries
-mkdir -p %{build_llvm_libdir}
-cp -R %{_vpath_builddir}/unittests %{build_llvm_libdir}/
-rm -rf `find %{build_llvm_libdir} -iname 'cmake*'`
-
-# Install libraries used for testing
-install -m 0755 %{build_libdir}/BugpointPasses.so %{buildroot}%{_libdir}
-install -m 0755 %{build_libdir}/LLVMHello.so %{buildroot}%{_libdir}
-
-# Install test inputs for PDB tests
-echo "%{_datadir}/llvm/src/unittests/DebugInfo/PDB" > %{build_llvm_libdir}/unittests/DebugInfo/PDB/llvm.srcdir.txt
-mkdir -p %{buildroot}%{_datadir}/llvm/src/unittests/DebugInfo/PDB/
-cp -R unittests/DebugInfo/PDB/Inputs %{buildroot}%{_datadir}/llvm/src/unittests/DebugInfo/PDB/
-
 %if %{with gold}
 # Add symlink to lto plugin in the binutils plugin directory.
 %{__mkdir_p} %{buildroot}%{_libdir}/bfd-plugins/
@@ -535,22 +483,12 @@ fi
 
 %files test
 %license LICENSE.TXT
-%{_libexecdir}/tests/llvm/
-%{llvm_libdir}/unittests/
-%{_datadir}/llvm/src/unittests
-%{_datadir}/llvm/src/test.tar.gz
-%{_datadir}/llvm/src/%{_arch}.site.cfg.py
-%{_datadir}/llvm/src/%{_arch}.Unit.site.cfg.py
-%{_datadir}/llvm/lit.fedora.cfg.py
-%{_datadir}/llvm/src/docs/CommandGuide/dsymutil.rst
 %{_bindir}/not
 %{_bindir}/count
 %{_bindir}/yaml-bench
 %{_bindir}/lli-child-target
 %{_bindir}/llvm-isel-fuzzer
 %{_bindir}/llvm-opt-fuzzer
-%{_libdir}/BugpointPasses.so
-%{_libdir}/LLVMHello.so
 
 %files googletest
 %license LICENSE.TXT