Remove unused third_party/talloc

third_party/talloc/libreplace/dlfcn.m4

Index: third_party/talloc/libreplace/dlfcn.m4
diff --git a/third_party/talloc/libreplace/dlfcn.m4 b/third_party/talloc/libreplace/dlfcn.m4
deleted file mode 100644
index 722e0246b792f7891d8b2bfa2cd4068be54d3f72..0000000000000000000000000000000000000000
--- a/third_party/talloc/libreplace/dlfcn.m4
+++ /dev/null
@@ -1,31 +0,0 @@
-dnl dummies provided by dlfcn.c if not available
-save_LIBS="$LIBS"
-LIBS=""
-
-libreplace_cv_dlfcn=no
-AC_SEARCH_LIBS(dlopen, dl)
-
-AC_CHECK_HEADERS(dlfcn.h)
-AC_CHECK_FUNCS([dlopen dlsym dlerror dlclose],[],[libreplace_cv_dlfcn=yes])
-
-libreplace_cv_shl=no
-AC_SEARCH_LIBS(shl_load, sl)
-AC_CHECK_HEADERS(dl.h)
-AC_CHECK_FUNCS([shl_load shl_unload shl_findsym],[],[libreplace_cv_shl=yes])
-
-AC_VERIFY_C_PROTOTYPE([void *dlopen(const char* filename, unsigned int flags)],
-	[
-	return 0;
-	],[
-	AC_DEFINE(DLOPEN_TAKES_UNSIGNED_FLAGS, 1, [Whether dlopen takes unsigned int flags])
-	],[],[
-	#include <dlfcn.h>
-	])
-
-if test x"${libreplace_cv_dlfcn}" = x"yes";then
-	LIBREPLACEOBJ="${LIBREPLACEOBJ} $libreplacedir/dlfcn.o"
-fi
-
-LIBDL="$LIBS"
-AC_SUBST(LIBDL)
-LIBS="$save_LIBS"