[gnome-builder] build: remove .h from private sources list

[Christian Hergert <chergert src gnome org>]

commit c79655db7412f78c2b31e3b51babf4237e464c31
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jan 22 19:00:29 2018 -0800

    build: remove .h from private sources list
    
    We don't need these, the dependency check deals with things just fine.

 src/libide/util/meson.build | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/src/libide/util/meson.build b/src/libide/util/meson.build
index 0c67cae3f..1a5539543 100644
--- a/src/libide/util/meson.build
+++ b/src/libide/util/meson.build
@@ -29,13 +29,9 @@ util_sources = [
 
 util_private_sources = [
   'ide-async-helper.c',
-  'ide-async-helper.h',
   'ide-battery-monitor.c',
-  'ide-battery-monitor.h',
   'ide-doc-seq.c',
-  'ide-doc-seq.h',
   'ide-window-settings.c',
-  'ide-window-settings.h',
 ]
 
 libide_public_headers += files(util_headers)