tec: Remove data/do-install.txt (#3555)

* Remove file data/do-install.txt

This file was painful during update because we had to remember to delete
it each time. It added a security issue by allowing an attacker to
reinstall FreshRSS during the update process.

The (more powerful) file data/applied_migrations.txt has been introduced
in 8619cf6fa to replace do-install.txt. We had to wait for at least one
release in order to make sure existing instances of FreshRSS created the
migration file. It should be ok now.

* Replace i18n install.not_deleted key

* Update documentation to update FreshRSS

1 files changed, 0 insertions, 6 deletions

diff --git a/lib/lib_install.php b/lib/lib_install.php
index f28cb094d..82c98d646 100644
--- a/lib/lib_install.php
+++ b/lib/lib_install.php
@@ -113,12 +113,6 @@ function initDb() {
 	return $databaseDAO->testConnection();
 }
 
-function deleteInstall() {
-	$path = join_path(DATA_PATH, 'do-install.txt');
-	@unlink($path);
-	return !file_exists($path);
-}
-
 function setupMigrations() {
 	$migrations_path = APP_PATH . '/migrations';
 	$migrations_version_path = DATA_PATH . '/applied_migrations.txt';