Simplify script

Signed-off-by: Michal Čihař <michal@cihar.com>

.scrutinizer.yml

@@ -14,12 +14,10 @@ before_commands:
     - pip install Django
 build:
     dependencies:
-        before:
+        override:
             - pip install https://github.com/translate/translate/zipball/de3f080abf6f2fecfca97d283a58eb6824d8078e
             - pip install coverage
             - pip install -r requirements-optional.txt
-        override:
-            - true
     tests:
         override:
             -