Revert "common/travis: add consistency check on travis runs"

This reverts commit ff13ab493b as it fails
and takes ages to complete.

.travis.yml

@@ -10,8 +10,7 @@ env:
         - PATH=$PATH:$HOME/bin
 
     matrix:
-        - ACTION=xlint
-        - ACTION=consistency-check
+        - XLINT=1
         - ARCH=x86_64 BOOTSTRAP=x86_64
         - ARCH=i686 BOOTSTRAP=i686
         - ARCH=armv6hf BOOTSTRAP=x86_64
@@ -25,7 +24,6 @@ before_script:
     - common/travis/fetch_upstream.sh
     - common/travis/changed_templates.sh
     - common/travis/xlint.sh
-    - common/travis/consistency_check.sh
     - common/travis/bootstrap.sh $BOOTSTRAP
 
 script: