mkdist.sh script cleanup

Since Travis CI is no longer used.

Author: ska80

Release/mkdist.sh

@@ -20,7 +20,6 @@ git checkout tags/v"$1"
 rm -rf .git
 rm -rf .github
 rm .git*
-rm -f .travis*
 rm -rf Release
 rm -rf benchmark
 find . -type f -name '.gitignore' -exec rm -f {} \;