remove fish

Signed-off-by: Jess Frazelle <me@jessfraz.com>

fish/Dockerfile

@@ -1,12 +0,0 @@
-FROM debian:wheezy
-MAINTAINER Jessica Frazelle <jess@docker.com>
-
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-key D880C8E4 \
-	&& echo 'deb http://download.opensuse.org/repositories/shells:/fish:/release:/2/Debian_7.0/ ./' > /etc/apt/sources.list.d/fish-shell.list \
-	&& apt-get update && apt-get install -y \
-	fish \
-	--no-install-recommends \
-	&& rm -rf /var/lib/apt/lists/* \
-	&& mkdir -p /root/.config/fish/completions
-
-ENTRYPOINT [ "fish" ]