i've completely remove minecraft from pc. tried it with no texture packs and same errors

[11:48:39] [main/INFO]: Setting user: mightadin
[11:48:39] [main/INFO]: (Session ID is token:03f2cefdc48d4dc4bb096c45a1232cdf:64f28e149af7460db527e9f6de033d6f)
[11:48:39] [Client thread/INFO]: LWJGL Version: 2.9.1
[11:48:40] [Client thread/INFO]: Reloading ResourceManager: Default, John Smith Legacy 1.7.10 v1.2.20.zip, John Smith Legacy 14w26c.zip

Starting up SoundSystem...
Initializing LWJGL OpenAL
(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
OpenAL initialized.

[11:48:40] [Sound Library Loader/INFO]: Sound engine started
[11:48:43] [Client thread/INFO]: Created: 1024x512 textures/blocks-atlas
[11:48:44] [Client thread/INFO]: Created: 512x512 textures/items-atlas
[11:48:58] [Client thread/INFO]: Realms library version == 1.3.2
[11:48:58] MCO Availability Checker #1/INFO: Could not authorize you against Realms server: Invalid session id
[11:48:58] MCO Availability Checker #1/ERROR: Couldn't connect to realms: