HAVE_GLIBC_SUPPORT is only used in `perf version --build-options` but
doesn't control any behavior. Remove from the build to simplify it.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/Makefile.config   | 4 ----
 tools/perf/builtin-version.c | 1 -
 2 files changed, 5 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 33d62d542fd5..a68a3e9b47ae 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -476,10 +476,6 @@ else
   endif # libelf support
 endif # NO_LIBELF
 
-ifeq ($(feature-glibc), 1)
-  CFLAGS += -DHAVE_GLIBC_SUPPORT
-endif
-
 ifeq ($(feature-libaio), 1)
   ifndef NO_AIO
     CFLAGS += -DHAVE_AIO_SUPPORT
diff --git a/tools/perf/builtin-version.c b/tools/perf/builtin-version.c
index 0d9cda238c07..c5d03a11e565 100644
--- a/tools/perf/builtin-version.c
+++ b/tools/perf/builtin-version.c
@@ -59,7 +59,6 @@ static void library_status(void)
 {
 	STATUS(HAVE_DWARF_SUPPORT, dwarf);
 	STATUS(HAVE_DWARF_GETLOCATIONS_SUPPORT, dwarf_getlocations);
-	STATUS(HAVE_GLIBC_SUPPORT, glibc);
 #ifndef HAVE_SYSCALL_TABLE_SUPPORT
 	STATUS(HAVE_LIBAUDIT_SUPPORT, libaudit);
 #endif
-- 
2.40.0.rc1.284.g88254d51c5-goog