[gnome-runtime-images] fd.o 18.08 based images: Don't install Debug extensions

[Jordan Petridis <jpetridis src gnome org>]

commit 31dc2f0b11ee4d00bf554bed2c8831e66698eed1
Author: Jordan Petridis <jpetridis gnome org>
Date:   Wed Oct 31 20:11:06 2018 +0200

    fd.o 18.08 based images: Don't install Debug extensions
    
    They are kinda huge.
    
    https://gitlab.gnome.org/GNOME/gnome-runtime-images/issues/1

 gnome-3-30/Dockerfile   | 2 +-
 gnome-master/Dockerfile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gnome-3-30/Dockerfile b/gnome-3-30/Dockerfile
index aed8122..14a0ca8 100644
--- a/gnome-3-30/Dockerfile
+++ b/gnome-3-30/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install -y flathub org.gnome.Sdk//3.30 org.gnome.Sdk.Debug//3.30  org.gnome.Platform//3.30
+RUN flatpak install -y flathub org.gnome.Sdk//3.30 org.gnome.Platform//3.30
diff --git a/gnome-master/Dockerfile b/gnome-master/Dockerfile
index 5774a75..7575aaf 100644
--- a/gnome-master/Dockerfile
+++ b/gnome-master/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install -y gnome-nightly org.gnome.Sdk org.gnome.Sdk.Debug org.gnome.Platform
+RUN flatpak install -y gnome-nightly org.gnome.Sdk org.gnome.Platform