[Bootstrap] Removed now unnecessary line

This commit removes a line that sets all files in `~/.local/bin' as
executables. It was aimed at scripts exported from `bin.org' but it is
no longer required since the executability of these tangled files is
enforced by the shebang header argument added in commit 8f35b85ef1

.config/yadm/bootstrap

@@ -156,8 +156,6 @@ emacs -q --batch --eval '(require \'ob-tangle)' \
 --eval '(setq org-confirm-babel-evaluate nil)' \
 --eval '(org-babel-tangle-file "~/org/config/tmux.org")'
 
-find ~/.local/bin -type f -exec chmod +x {} +
-
 printf "\n# Installing Spacemacs ########################################################\n\n"
 rm -rf ~/.config/emacs