gn build: Stop passing -DLLVM_LIBXML2_ENABLED to some targets

This is a remnant from before the gn build had a working config.h.

Defining LLVM_LIBXML2_ENABLED only for targets that depend on build/libs/xml is
nice in that only some of the codebase needs to be rebuilt when
llvm_enable_libxml2 changes -- but config.h already defines it and defining it
there and then redundantly a second time for some targets is worse than having
it just in config.h.

No behavior change.

Differential Revision: https://reviews.llvm.org/D56908

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351758 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/gn/build/libs/xml/BUILD.gn b/utils/gn/build/libs/xml/BUILD.gn
index f3590f4601cc8dc725298b0ce91b2b2e0f57f349..3af3c851698c8c0deff8c127bbd86465da55ece8 100644 (file)
--- a/utils/gn/build/libs/xml/BUILD.gn
+++ b/utils/gn/build/libs/xml/BUILD.gn
@@ -3,7 +3,6 @@ import("//llvm/utils/gn/build/mac_sdk.gni")
 
 config("xml_config") {
   visibility = [ ":xml" ]
-  defines = [ "LLVM_LIBXML2_ENABLED" ]
   libs = [ "xml2" ]
   if (host_os == "mac") {
     include_dirs = [ "$mac_sdk_path/usr/include/libxml2" ]