Remove more junk files and scripts (#20682)

keyboards/ergodox_ez/190hotfix.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-#a tool to fix broken keymaps as a result of pull request #190 
-#changing the declaration of matrix_scan_user() and matrix_init_user()
-#
-#This script will save a copy of the specified keymap as keymap.c.bak
-#and then create a new keymap.c with the definion corrected.
-#this script must be run from the ergodox_ez directory
-if [ $# -ne 1 ]; then
-    echo $0: usage: ./190hotfix keymap_name
-    exit 1
-fi
-
-echo Saving backup as ./keymaps/$1/keymap.c.bak ...
-mv ./keymaps/$1/keymap.c ./keymaps/$1/keymap.c.bak
-
-echo Modifying ./keymaps/$1/keymap.c ...
-cat ./keymaps/$1/keymap.c.bak | sed -r 's/^void \* matrix_/void matrix_/'>./keymaps/$1/keymap.c
-
-echo Complete!