[gnome-builder] build: remove redundant compilation flags

[Christian Hergert <chergert src gnome org>]

commit a4e69534d1574edd381f8bcec2393ad0728b7635
Author: Christian Hergert <chergert redhat com>
Date:   Tue Oct 23 13:20:46 2018 -0700

    build: remove redundant compilation flags
    
    These are set automatically, according to
    
      https://github.com/flathub/org.gnome.Builder/pull/6/files

 build-aux/flatpak/org.gnome.Builder.json | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
index f94a58f8f..5fd39c736 100644
--- a/build-aux/flatpak/org.gnome.Builder.json
+++ b/build-aux/flatpak/org.gnome.Builder.json
@@ -42,8 +42,6 @@
         "-vvvv"
     ],
     "build-options" : {
-        "cflags" : "-O2 -g",
-        "cxxflags" : "-O2 -g",
         "env" : {
             "BASH_COMPLETIONSDIR" : "/app/share/bash-completion/completions",
             "MOUNT_FUSE_PATH" : "../tmp/",