Switch from the bare repository method to stow to manage my dotfiles

I finally made the switch from the bare-repository method to stow to
manage my dotfiles. This brings some nice benefits, e.g. I can savely
say what file is in my dotfiles and what is missing out. Furthermore the
usage is _way_ simpler the before. Though one downside is the more
complicated removal of files, but I've documented a way which feels nice
to me as well. Finally I removed my old setup-script since I switched to
an ansible-setup anyway. So this config will eventually be applied
ansible and I don't have to care about installed software in this repo
anymore!

Reference: https://www.gnu.org/software/stow/
Reference: https://news.ycombinator.com/item?id=11071754
Reference: https://gitea.nehrke.info/nemoinho/dev-machine/

.bashrc

@@ -51,7 +51,6 @@ export NVM_DIR="$HOME/.config/nvm"
 [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
 
 # standard alias
-alias config='/usr/bin/git --git-dir=$HOME/Development/nemoinho/gitea.nehrke.info/nemoinho/dotfiles --work-tree=$HOME'
 alias cz='(pushd $(git rev-parse --show-toplevel); $(which cz); popd)'
 alias e='eza --icons --long --time-style=long-iso --group'
 alias ls='eza --time-style=long-iso --group'