[gnome-builder] gitlabci: Disable ccache.

[Jordan Petridis <jpetridis src gnome org>]

commit 766eb8703e8d686f59dcbaded3390d0098575142
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Fri Mar 23 11:55:04 2018 +0200

    gitlabci: Disable ccache.
    
    The I/O overhead it creates tends to be on par with the time
    it would take for compilation from scratch on the normal runners.
    When run on the AWS shared runners it even makes the build slower
    as opposed to speeding it up.

 .gitlab-ci.yml | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d21934911..94d6caa2a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
 stages:
     - test
 
-flatpak:master:
+flatpak:
     image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
     stage: test
 
@@ -14,9 +14,9 @@ flatpak:master:
         # - export FLATPAK_ARTIFACT=gnome-builder-${COMMIT_REF_SHA}.flatpak
 
         # Build the flatpak repo
-        - flatpak-builder --user --ccache --stop-at=gnome-builder app 
build-aux/flatpak/org.gnome.Builder.json
-        - flatpak-builder --run --ccache app build-aux/flatpak/org.gnome.Builder.json meson --prefix=/app 
--libdir=/app/lib _build
-        - flatpak-builder --run --ccache app build-aux/flatpak/org.gnome.Builder.json ninja -C _build install
+        - flatpak-builder --force-clean --stop-at=gnome-builder app build-aux/flatpak/org.gnome.Builder.json
+        - flatpak-builder --run app build-aux/flatpak/org.gnome.Builder.json meson --prefix=/app 
--libdir=/app/lib _build
+        - flatpak-builder --run app build-aux/flatpak/org.gnome.Builder.json ninja -C _build install
         - flatpak-builder --finish-only app build-aux/flatpak/org.gnome.Builder.json
         - flatpak build-export repo app
 
@@ -39,4 +39,5 @@ flatpak:master:
         paths:
             # Cache .flatpak-builder
             - .flatpak-builder/cache/
-            - .flatpak-builder/ccache/
+            - .flatpak-builder/downloads/
+            - .flatpak-builder/git/