Removes htaccess file creation and adds them in the repository

I also removed the previously created placeholders, which after all, have no more utility.

cache/.htaccess

@@ -0,0 +1,2 @@
+Allow from none
+Deny from all

data/.htaccess

@@ -0,0 +1,2 @@
+Allow from none
+Deny from all

index.php

@@ -88,13 +88,6 @@ function stripslashes_deep($value) { $value = is_array($value) ? array_map('stri
 
 // Directories creations (Note that your web host may require differents rights than 705.)
 if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory ('.realpath(dirname(__FILE__)).').</pre>');
-if (!is_file($GLOBALS['config']['DATADIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['DATADIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files.
-// Second check to see if Shaarli can write in its directory, because on some hosts is_writable() is not reliable.
-if (!is_file($GLOBALS['config']['DATADIR'].'/.htaccess')) die('<pre>ERROR: Shaarli does not have the right to write in its data directory ('.realpath($GLOBALS['config']['DATADIR']).').</pre>');
-if ($GLOBALS['config']['ENABLE_LOCALCACHE'])
-{
-    if (!is_file($GLOBALS['config']['CACHEDIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['CACHEDIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files.
-}
 
 // Handling of old config file which do not have the new parameters.
 if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl());

pagecache/.htaccess

@@ -0,0 +1,2 @@
+Allow from none
+Deny from all

tmp/.htaccess

@@ -0,0 +1,2 @@
+Allow from none
+Deny from all