Remove theme submodule

.drone.yml

@@ -13,13 +13,15 @@ steps:
       - git submodule update --recursive --remote
 
   - name: theme
-    image: kolaente/yarn
+    image: kolaente/tools
     pull: true
     group: build-static
     commands:
-      - cd themes/vikunja
-      - yarn --production=false
-      - ./node_modules/.bin/gulp prod
+      - cd themes
+      - mkdir vikunja
+      - cd vikunja
+      - wget https://dl.vikunja.io/theme/vikunja-theme.tar.gz
+      - tar -xzf vikunja-theme.tar.gz
 
   - name: build
     image: monachus/hugo

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "themes/vikunja"]
-	path = themes/vikunja
-	url = https://git.kolaente.de/vikunja/theme.git

themes/vikunja

@@ -1 +0,0 @@
-Subproject commit 1ebcbbb645ad20ea683feef2804314a6c658799b