Revert "Add HotJar tracking script"
Revert "Add HotJar tracking script"

This reverts commit 68a865b446be4aa5d337a9d8df36d89a9ca842af.

zhelezko/made-mistakes-jekyll,mmistakes/made-mistakes-jekyll,zhelezko/made-mistakes-jekyll,zhelezko/made-mistakes-jekyll,blogtips/blogtips.github.io,blogtips/blogtips.github.io,mmistakes/made-mistakes-jekyll,mmistakes/made-mistakes-jekyll,blogtips/blogtips.github.io