[libdazzle: 1/7] build: remove undef warnings from cflags

[Christian Hergert <chergert src gnome org>]

commit 6d551056cab94c0910b0a187c359ead5c2b9ff0a
Author: Tom Schoonjans <Tom Schoonjans rfi ac uk>
Date:   Sun Jun 27 06:42:40 2021 +0100

    build: remove undef warnings from cflags
    
    These flags break the build on Windows, where __GNUC__ is not defined and
    checked for in the glib headers

 meson.build | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 9a2c157..67c6db7 100644
--- a/meson.build
+++ b/meson.build
@@ -79,7 +79,6 @@ test_c_args = [
   '-Werror=shadow',
   '-Werror=strict-prototypes',
   '-Werror=trigraphs',
-  '-Werror=undef',
   '-Werror=write-strings',
   '-Wformat-nonliteral',
   ['-Werror=format-security', '-Werror=format=2' ],
@@ -101,7 +100,6 @@ test_c_args = [
   '-Wstrict-prototypes',
   '-Wswitch-default',
   '-Wswitch-enum',
-  '-Wundef',
   '-Wuninitialized',
   '-Wunused',
   '-fno-strict-aliasing',