remove index.php after installing myth:auth library

Code:
## .htaccess Control For CORS Configuration



 # Add Font Awesome Font Types

 AddType application/vnd.ms-fontobject .eot

 AddType application/x-font-ttf        .ttf

 AddType application/x-font-opentype  .otf

 AddType application/font-woff        .woff

 AddType application/font-woff2        .woff2



 <IfModule mod_headers.c>

        <FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|svg|svgz|jpg|png|wep|ico|font.css|css|js)$">

            ## un-remark this one for all access and remark out the one below it

            ## very un-secure!!!

            #Header set Access-Control-Allow-Origin "*"

            ## Change this to your local host url. and https or http

            Header add Access-Control-Allow-Origin: "https://yoursite.com"

            Header add Access-Control-Allow-Methods: "GET,POST,OPTIONS,DELETE,PUT"

            Header add Access-Control-Allow-Headers: "Upgrade-Insecure-Requests"

        </FilesMatch>

 </IfModule>



 # Remove index.php from URL

 RewriteCond %{HTTP:X-Requested-With}    !^XMLHttpRequest$

 RewriteCond %{THE_REQUEST}              ^[^/]*/index\.php [NC]

 RewriteRule ^index\.php(.*)$            $1 [R=301,NS,L]



# ----------------------------------------------------------------------



## Full .htaccess file



# Disable directory browsing

Options All -Indexes



# ----------------------------------------------------------------------

# Rewrite engine

# ----------------------------------------------------------------------



# Turning on the rewrite engine is necessary for the following rules and features.

# FollowSymLinks must be enabled for this to work.

<IfModule mod_rewrite.c>

 Options +FollowSymlinks

 RewriteEngine On



 # If you installed CodeIgniter in a subfolder, you will need to

 # change the following line to match the subfolder you need.

 # http://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewritebase

 RewriteBase /



 ## .htaccess Control For CORS Configuration



 # Add Font Awesome Font Types

 AddType application/vnd.ms-fontobject .eot

 AddType application/x-font-ttf        .ttf

 AddType application/x-font-opentype  .otf

 AddType application/font-woff        .woff

 AddType application/font-woff2        .woff2



 <IfModule mod_headers.c>

        <FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|svg|svgz|jpg|png|ico|font.css|css|js)$">

            ## un-remark this one for all access and remark out the one below it

            #Header set Access-Control-Allow-Origin "*"

            ## Change this to your local host url. and https or http

            Header add Access-Control-Allow-Origin: "https://ci4test.local"

            Header add Access-Control-Allow-Methods: "GET,POST,OPTIONS,DELETE,PUT"

            Header add Access-Control-Allow-Headers: "Upgrade-Insecure-Requests"

        </FilesMatch>

 </IfModule>



 # Remove index.php from URL

 RewriteCond %{HTTP:X-Requested-With}    !^XMLHttpRequest$

 RewriteCond %{THE_REQUEST}              ^[^/]*/index\.php [NC]

 RewriteRule ^index\.php(.*)$            $1 [R=301,NS,L]



 # redirect http:// to https://

 RewriteCond %{HTTPS} !on

 RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]



 # Redirect Trailing Slashes...

 RewriteCond %{REQUEST_FILENAME} !-d

 RewriteCond %{REQUEST_URI} (.+)/$

 RewriteRule ^ %1 [L,R=301]



 # Rewrite "www.example.com -> example.com"

 RewriteCond %{HTTPS} !=on

 RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]

 RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L]



 # Checks to see if the user is attempting to access a valid file,

 # such as an image or css document, if this isn't true it sends the

 # request to the front controller, index.php

 RewriteCond %{REQUEST_FILENAME} !-f

 RewriteCond %{REQUEST_FILENAME} !-d

 RewriteRule ^([\s\S]*)$ index.php/$1 [L,NC,QSA]



 # Ensure Authorization header is passed along

 RewriteCond %{HTTP:Authorization} .

 RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

</IfModule>



<IfModule !mod_rewrite.c>

 # If we don't have mod_rewrite installed, all 404's

 # can be sent to index.php, and everything works as normal.

 ErrorDocument 404 index.php

</IfModule>



# Disable server signature start

 ServerSignature Off

# Disable server signature end