Remove unnecessary code

Author: ilyaglow

docker/msfconsole.rc

@@ -6,5 +6,5 @@ else
   lhost = %x(hostname -i)
 end
 run_single("setg LHOST #{lhost}")
-run_single("db_connect #{ENV['DATABASE_URL'].gsub('postgres://', '')}") if ENV['DATABASE_URL']
+run_single("db_connect #{ENV['DATABASE_URL']}") if ENV['DATABASE_URL']
 </ruby>