Remove my Keybase script.

Keybase seems to be unmaintained. I no longer use. The packages are not
easily buildable.

Documents/bin/kb

-#!/bin/sh
-set -eu
-
-CACHE_DIR="${XDG_CACHE_HOME:-$HOME/.cache}/keybase"
-RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user$(id -u)}/keybase"
-
-if [ -f "${XDG_CONFIG_HOME:-$HOME/.config}/user-dirs.dirs" ]
-then
-    # shellcheck disable=SC1091
-    . "${XDG_CONFIG_HOME:-$HOME/.config}/user-dirs.dirs"
-else
-    XDG_DOCUMENTS_DIR="$HOME/Documents"
-fi
-DOCUMENTS_DIR="$XDG_DOCUMENTS_DIR/Smile/keybase"
-
-start () {
-    mkdir -p "$CACHE_DIR"
-    mkdir -p "$RUNTIME_DIR"
-
-    if [ "$(ss -Hpx src /run/user/1000/keybase/keybased.sock)" = '' ]
-    then
-        keybase --log-file "$CACHE_DIR/keybase.service.log" \
-            service \
-            --chdir "$RUNTIME_DIR" &
-    fi
-
-    if ! mountpoint --quiet "$RUNTIME_DIR/kbfs"
-    then
-        KEYBASE_RUN_MODE=prod kbfsfuse \
-            -log-file "$CACHE_DIR/keybase.kbfs.log" \
-            -runtime-dir "$RUNTIME_DIR" &
-    fi
-}
-
-stop () {
-    if mountpoint --quiet "$RUNTIME_DIR/kbfs"
-    then
-        fusermount -uz "$RUNTIME_DIR/kbfs"
-    fi
-
-    if [ -f "$RUNTIME_DIR/keybased.pid" ]
-    then
-        kill "$(cat "$RUNTIME_DIR/keybased.pid")"
-    else
-        pkill keybase || true
-    fi
-
-    pkill kbfsfuse || true
-}
-
-sync () {
-    if ! mountpoint --quiet "$RUNTIME_DIR/kbfs"
-    then
-        start
-    fi
-    mkdir -p "$DOCUMENTS_DIR"
-    cp -rf "$RUNTIME_DIR/kbfs/"* "$DOCUMENTS_DIR/"
-    if [ ! -w "/keybase" ]
-    then
-        echo "Skipped creating links in /keybase, directory not writeable." >&2
-    else
-        find /home/nimrod/Documents/Smile/keybase/ -maxdepth 1 -mindepth 1 -exec ln -sf --target /keybase/ '{}' \;
-    fi
-}
-
-usage () {
-    echo "usage: $(basename "$0") start|stop|sync" >&2
-    exit 1
-}
-
-command="${1:-}"
-
-case "$command" in
-    start) shift; start "$@";;
-    stop) shift; stop "$@";;
-    sync) shift; sync "$@";;
-    *) usage;;
-esac