[test] Remove unused 'test_examples' config var

Remove config.test_examples from lit.site.cfg and the relevant
ENABLE_EXAMPLES definition from CMake. It is not used anywhere.

Differential Revision: https://reviews.llvm.org/D28283

llvm-svn: 291283

llvm/test/CMakeLists.txt

@@ -1,7 +1,3 @@
-if(LLVM_BUILD_EXAMPLES)
-  set(ENABLE_EXAMPLES 1)
-endif()
-
 configure_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
   ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg

llvm/test/lit.site.cfg.in

@@ -38,7 +38,6 @@ config.have_zlib = "@HAVE_LIBZ@"
 config.have_libxar = "@HAVE_LIBXAR@"
 config.have_dia_sdk = @LLVM_ENABLE_DIA_SDK@
 config.enable_ffi = "@LLVM_ENABLE_FFI@"
-config.test_examples = "@ENABLE_EXAMPLES@"
 
 # Support substitution of the tools_dir with user parameters. This is
 # used when we can't determine the tool dir at configuration time.