[d-feet] build: Stop using GNOME_COMPILE_WARNINGS

[Thomas Bechtold <toabctl src gnome org>]

commit 049d60aec8a15a98a781566ed361a96bb9cfda93
Author: Simon McVittie <smcv debian org>
Date:   Sat Nov 4 14:50:49 2017 +0000

    build: Stop using GNOME_COMPILE_WARNINGS
    
    There is no point in checking for compiler warnings when we don't
    compile any C or C++ code.
    
    Signed-off-by: Simon McVittie <smcv debian org>
    Bug-Debian: https://bugs.debian.org/829972
    
    https://bugzilla.gnome.org/show_bug.cgi?id=789906

 configure.ac |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3b10582..ab2617f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,8 +12,6 @@ GLIB_GSETTINGS
 
 PKG_PROG_PKG_CONFIG
 
-GNOME_COMPILE_WARNINGS([maximum])
-
 YELP_HELP_INIT
 
 AM_PATH_PYTHON([2.7])