chore: remove unused x-mkd and x-validate-sha256sum.sh scripts

x-mkd's cd-in-subshell cannot work when executed (only sourced) and
is unused in the repo. x-validate-sha256sum.sh duplicates the
functionality of x-sha256sum-matcher.

local/bin/x-mkd

@@ -1,50 +0,0 @@
-#!/usr/bin/env bash
-#
-# Create a directory and cd into it
-# Usage: x-mkd <dir>
-
-set -euo pipefail
-
-# Set verbosity with VERBOSE=1
-VERBOSE="${VERBOSE:-0}"
-
-# Function to print usage information
-usage()
-{
-  echo "Usage: $0 <dir>"
-  exit 1
-}
-
-# Function to print messages if VERBOSE is enabled
-# $1 - message (string)
-msg()
-{
-  [[ "$VERBOSE" -eq 1 ]] && echo "$1"
-}
-
-# Function to create a directory and cd into it
-# $1 - directory to create and cd into (string)
-mkcd()
-{
-  local dir=$1
-
-  mkdir -p "$dir" && msg "Directory $dir created"
-
-  cd "$dir" || {
-    msg "Failed to cd into $dir"
-    exit 1
-  }
-  msg "Changed directory to $dir"
-}
-
-# Main function
-main()
-{
-  if [ "$#" -ne 1 ]; then
-    usage
-  fi
-
-  mkcd "$1"
-}
-
-main "$@"

local/bin/x-mkd.md

@@ -1,19 +0,0 @@
-# x-mkd
-
-Create a directory and immediately `cd` into it.
-
-## Usage
-
-```bash
-x-mkd <dir>
-```
-
-Set `VERBOSE=1` for status messages.
-
-## Example
-
-```bash
-x-mkd project && git init
-```
-
-<!-- vim: set ft=markdown spell spelllang=en_us cc=80 : -->

local/bin/x-validate-sha256sum.sh

@@ -1,68 +0,0 @@
-#!/usr/bin/env bash
-#
-# This script contains a helper for sha256 validating your downloads
-#
-# Source: https://gist.github.com/onnimonni/b49779ebc96216771a6be3de46449fa1
-# Author: Onni Hakala
-# License: MIT
-#
-# Updated by Ismo Vuorinen <https://github.com/ivuorinen> 2022
-##
-
-set -euo pipefail
-
-# Stop program and give error message
-# $1 - error message (string)
-error()
-{
-  echo "(!) ERROR: $1" >&2
-  exit 1
-}
-
-# Check for sha256sum command
-if ! command -v sha256sum &> /dev/null; then
-  error "sha256sum could not be found, please install it first"
-fi
-
-# Return sha256sum for file
-# $1 - filename (string)
-get_sha256sum()
-{
-  sha256sum "$1" | head -c 64
-}
-
-# Validate input arguments
-validate_inputs()
-{
-  if [ -z "${filename:-}" ]; then
-    error "You need to provide filename as the first parameter"
-  fi
-
-  if [ -z "${file_hash:-}" ]; then
-    error "You need to provide sha256sum as the second parameter"
-  fi
-}
-
-# Main validation logic
-validate_file()
-{
-  if [ ! -f "$filename" ]; then
-    error "File $filename doesn't exist"
-  elif [ "$(get_sha256sum "$filename")" = "$file_hash" ]; then
-    echo "(*) Success: $filename matches provided sha256sum"
-  else
-    error "$filename doesn't match provided sha256sum"
-  fi
-}
-
-# Main function
-main()
-{
-  filename=$1
-  file_hash=$2
-
-  validate_inputs
-  validate_file
-}
-
-main "$@"

local/bin/x-validate-sha256sum.sh.md

@@ -1,14 +0,0 @@
-# x-validate-sha256sum.sh
-
-This script contains a helper for sha256 validating your downloads
-
-## Usage
-
-```bash
-x-validate-sha256sum.sh file sha256sum
-```
-
-The script computes the SHA256 hash of `file` and compares it to the
-expected value. It exits non-zero if the sums differ.
-
-<!-- vim: set ft=markdown spell spelllang=en_us cc=80 : -->

tests/x-mkd.bats

@@ -1,14 +0,0 @@
-#!/usr/bin/env bats
-
-@test "x-mkd creates directory" {
-  dir="$BATS_TMPDIR/mkd-test"
-  run env VERBOSE=1 bash local/bin/x-mkd "$dir"
-  [ "$status" -eq 0 ]
-  [ -d "$dir" ]
-}
-
-@test "x-mkd with no args shows usage" {
-  run bash local/bin/x-mkd
-  [ "$status" -eq 1 ]
-  [[ "$output" == "Usage:"* ]]
-}