Remove pskfyi/zsh-theme

pskfyi/zsh-theme is 404, remove

Signed-off-by: Joe Block <[email protected]>

Author: unixorn

README.md

@@ -2701,7 +2701,6 @@ These plugins add tab completions without adding extra functions or aliases.
 - [pronto (jthat)](https://github.com/jthat/zsh-pronto) - Simple and fast theme with `git` decorations and timing information.
 - [prowpt](https://github.com/alpaca-honke/prowpt) - Simple, lightweight, and customizable Powerline-like prompt, with decorators for `git` information, user, hostname, current directory, time and exit status of the last command.
 - [ps1.py](https://github.com/jwodder/ps1.py) - Has `git` status, truncated directory, `chroot` and `virtualenv` prompt decorations.
-- [pskfyi](https://github.com/pskfyi/zsh-theme) - Based on [lambda](https://github.com/ohmyzsh/ohmyzsh/wiki/Themes#lambda). Themed for ubuntu but easily tweaked.
 - [punctual](https://github.com/dannynimmo/punctual-zsh-theme) - Easily customizable, influenced by [spaceship](https://github.com/denysdovhan/spaceship-prompt).
 - [pure-agnoster](https://github.com/yourfin/pure-agnoster) - Mashup of [pure](https://github.com/sindresorhus/pure) and [agnoster](https://gist.github.com/3712874). Has `git` decorations and works well with both dark and light terminal backgrounds.
 - [pure](https://github.com/sindresorhus/pure) - A pretty, minimal and fast ZSH prompt. Includes `git` status decorations, prompt turns red if last command failed, username and host decorations when in a remote session or container, and current folder and command when a process is running.