cleanup:ci:Simplify the listing of files for sanity check (#929)

scripts/ci_sanity_checks.sh

@@ -24,12 +24,7 @@ check_diff(){
 }
 
 # List the files that are different from the trunk
-from=$(git rev-parse refs/remotes/origin/trunk)
-to=$(git rev-parse HEAD)
-interval=${from}..${to}
-[[ "${from}" == "${to}" ]] && interval=${to}
-
-for f in $(git diff --name-only ${interval} | sort -u); do
+for f in $(git diff --name-only refs/remotes/origin/trunk | sort -u); do
     if [[ "${f}" =~ navit/support/ ]] || [[ "${f}" =~ navit/fib-1\.1/ ]] || [[ "${f}" =~ navit/traffic/permanentrestrictions/ ]] ; then
         echo "[DEBUG] Skipping file ${f} ..."
         continue