Backing out 2b912044dfe7. Bug 591866 - Temporary hack to add channel-prefs.js back to nightlies. a=me

tools/update-packaging/common.sh

@@ -99,6 +99,7 @@ list_files() {
   count=0
 
   find . -type f \
+    ! -name "channel-prefs.js" \
     ! -name "update.manifest" \
     ! -name "temp-filelist" \
     | sed 's/\.\/\(.*\)/\1/' \