Remove the public/show_config_errors.php file

A better and safer way of showing the configuration errors should be
developed.

Signed-off-by: Maurício Meneghini Fauth <mauricio@fauth.dev>

libraries/classes/Config.php

@@ -658,9 +658,7 @@ public function checkErrors(): void
 
         $error = '[strong]' . __('Failed to read configuration file!') . '[/strong]'
             . '[br][br]'
-            . __('This usually means there is a syntax error in it, please check any errors shown below.')
-            . '[br][br]'
-            . '[conferr]';
+            . __('This usually means there is a syntax error in it.');
 
         throw new ConfigException(Sanitize::sanitizeMessage($error));
     }

libraries/classes/Sanitize.php

@@ -191,8 +191,6 @@ public static function sanitizeMessage(string $message, bool $escape = false, bo
             '[/doc]' => '</a>',
             '[sup]' => '<sup>',
             '[/sup]' => '</sup>',
-            '[conferr]' => '<iframe src="show_config_errors.php"><a href='
-                . '"show_config_errors.php">show_config_errors.php</a></iframe>',
             // used in libraries/Util.php
             '[dochelpicon]' => Html\Generator::getImage('b_help', __('Documentation')),
         ];

phpstan-baseline.neon

@@ -27580,11 +27580,6 @@ parameters:
 			count: 1
 			path: public/setup/index.php
 
-		-
-			message: "#^Parameter \\#1 \\$filename of function is_readable expects string, mixed given\\.$#"
-			count: 1
-			path: public/show_config_errors.php
-
 		-
 			message: "#^Call to function in_array\\(\\) requires parameter \\#3 to be set\\.$#"
 			count: 2

psalm.xml

@@ -18,7 +18,6 @@
         <directory name="test/classes"/>
         <directory name="test/selenium"/>
         <file name="public/index.php"/>
-        <file name="public/show_config_errors.php"/>
         <ignoreFiles>
             <directory name="vendor"/>
             <directory name="libraries/cache"/>

scripts/check-release-excludes.sh

@@ -202,8 +202,6 @@ validateExtension() {
         ;;
         config.sample.inc.php)
         ;;
-        public/show_config_errors.php)
-        ;;
         *)
             foundFileExt
         ;;