diff --git a/.travis.yml b/.travis.yml
index 64550f2526009cd6e250012b8eebd78e1056bbc8..74c3f373a98978229bd8567c1470c216409958a1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,16 +21,5 @@ script:
  - cd scripts; make -k
  - cd ..
 
-## find lines with tabs
-# - rm -f CppCoreGuidelines.md.tabs
-# - cat CppCoreGuidelines.md | nl -ba | sed -s 's/\(^[^\t]*\)\t/\1--/g' | grep  $'\t'  | sed -s 's/\t/\*\*\*\*/g' > CppCoreGuidelines.md.tabs
-# - if [[ -s CppCoreGuidelines.md.tabs ]]; then echo 'Tabs found'; cat CppCoreGuidelines.md.tabs; false; fi;
-
-## check references unique
- - rm -f CppCoreGuidelines.md.uniq
- - grep -oP '(?<=<a name=")[^\"]+' CppCoreGuidelines.md | uniq -d > CppCoreGuidelines.md.uniq
- - if [[ -s CppCoreGuidelines.md.uniq ]]; then echo 'Found duplicate anchors:'; cat CppCoreGuidelines.md.uniq; false; fi;
-
-
 notifications:
   email: false