zsh: Remove chpwd-readme hook

The hook was never added since the `functions` array was misspelled. I
fixed that and left it turned on the last few days and absolutely hate
it. No idea why I ever thought that this could be nice.

.config/zsh/zshrc.d/40-functions.zsh

@@ -459,21 +459,6 @@ create_venv() {
 	fi
 }
 
-# Open READMEs in a pager when going into a directory that contains one.
-# See 45-hooks.zsh
-_page_readme_chpwd_handler() {
-	local readme
-	local -a readmes=(README.md README.txt README Readme.md Readme.txt Readme
-	                  readme.md readme.txt readme)
-
-	for readme in "$readmes[@]"; do
-		[[ -e "$readme" ]] || continue
-
-		${PAGER:-less} "$readme"
-		break
-	done
-}
-
 # I sometimes find `pgrep` not matching the processes I am searching for, but
 # `ps aux | grep ...` did not disappoint yet.
 psgrep() {

.config/zsh/zshrc.d/45-hooks.zsh

@@ -1,4 +0,0 @@
-# vim: ft=zsh
-
-(( ! $+function[_page_readme_chpwd_handler] )) \
-	|| add-zsh-hook chpwd _page_readme_chpwd_handler